Severity: 8192
Message: Creation of dynamic property CI_URI::$config is deprecated
Filename: core/URI.php
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File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
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Message: Creation of dynamic property CI_Router::$uri is deprecated
Filename: core/Router.php
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Backtrace:
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Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$benchmark is deprecated
Filename: core/Controller.php
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Backtrace:
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Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$hooks is deprecated
Filename: core/Controller.php
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Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$config is deprecated
Filename: core/Controller.php
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Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$log is deprecated
Filename: core/Controller.php
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Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$utf8 is deprecated
Filename: core/Controller.php
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Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$uri is deprecated
Filename: core/Controller.php
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Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$exceptions is deprecated
Filename: core/Controller.php
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Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$router is deprecated
Filename: core/Controller.php
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File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$output is deprecated
Filename: core/Controller.php
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Backtrace:
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Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$security is deprecated
Filename: core/Controller.php
Line Number: 83
Backtrace:
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Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$input is deprecated
Filename: core/Controller.php
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File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$lang is deprecated
Filename: core/Controller.php
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File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
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Message: Creation of dynamic property Product::$db is deprecated
Filename: core/Loader.php
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File: /var/www/prodicon.dk/public_html/index.php
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Function: require_once
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Message: Creation of dynamic property CI_DB_mysqli_driver::$failover is deprecated
Filename: database/DB_driver.php
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Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
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Function: require_once
Severity: Warning
Message: ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
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Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_set_cookie_params() [function.session-set-cookie-params]: Session cookie parameters cannot be changed after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
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File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
Line Number: 355
Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
Line Number: 365
Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
Line Number: 366
Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
Line Number: 367
Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
Line Number: 368
Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: ini_set() [function.ini-set]: Session ini settings cannot be changed after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
Line Number: 426
Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_set_save_handler() [function.session-set-save-handler]: Session save handler cannot be changed after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
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Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: Warning
Message: session_start() [function.session-start]: Session cannot be started after headers have already been sent (sent from /var/www/prodicon.dk/public_html/system/core/Exceptions.php on line 76)
Filename: Session/Session.php
Line Number: 137
Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Product::$session is deprecated
Filename: core/Loader.php
Line Number: 1284
Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property Product::$Global_model is deprecated
Filename: core/Loader.php
Line Number: 359
Backtrace:
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$load is deprecated
Filename: core/Loader.php
Line Number: 932
Backtrace:
File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
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Filename: core/Loader.php
Line Number: 932
Backtrace:
File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
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Filename: core/Loader.php
Line Number: 932
Backtrace:
File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once
Severity: 8192
Message: Creation of dynamic property CI_Loader::$config is deprecated
Filename: core/Loader.php
Line Number: 932
Backtrace:
File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
File: /var/www/prodicon.dk/public_html/index.php
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Function: require_once
Severity: 8192
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Filename: core/Loader.php
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File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
File: /var/www/prodicon.dk/public_html/index.php
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Function: require_once
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Filename: core/Loader.php
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Backtrace:
File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
File: /var/www/prodicon.dk/public_html/index.php
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Function: require_once
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Filename: core/Loader.php
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File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
File: /var/www/prodicon.dk/public_html/index.php
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Filename: core/Loader.php
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File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
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Function: require_once
Severity: 8192
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Filename: core/Loader.php
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File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
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Filename: core/Loader.php
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Backtrace:
File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
File: /var/www/prodicon.dk/public_html/index.php
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Severity: 8192
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Filename: core/Loader.php
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File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
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File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
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Filename: core/Loader.php
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Backtrace:
File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
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Severity: 8192
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Filename: core/Loader.php
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Backtrace:
File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
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File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
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Function: view
File: /var/www/prodicon.dk/public_html/index.php
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Severity: 8192
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File: /var/www/prodicon.dk/public_html/application/controllers/Product.php
Line: 220
Function: view
File: /var/www/prodicon.dk/public_html/index.php
Line: 315
Function: require_once

En tromme er et perkussionsinstrument, der består af en hul cilindrisk krop med en stram membran strakt over toppen. Membranen kan enten være lavet af animalskind eller syntetisk materiale som nylon. Trommen spilles ved at slå på membranen med hænder, trommestikker eller andre slagtøjsredskaber. Lyden af trommen skabes ved vibrationer i membranen, som forstærkes og projiceres ud i rummet.
Trommer findes i forskellige former og størrelser, såsom basstromme, snaredrum, tomtrommer, bongotrommer og mange flere. Hver tromme har sit unikke lyd- og spillemæssige formål i et trommesæt, der ofte bruges i musikproduktioner og liveoptrædener. Trommer kan også bruges i forskellige musikgenrer som rock, jazz, pop, latin og mange flere, og er en vigtig del af rytmegruppen i et hvilket som helst musikstykke.
Trommen spiller en afgørende rolle i musikkens verden og er et alsidigt instrument, der bruges i en lang række musikgenrer. Den slående lyd fra trommen tilføjer rytme, energi og dybde til musikken og fungerer som et solidt fundament for andre instrumenter at bygge videre på. Trommen har en unik evne til at skabe stemning og drive en sang fremad, og dens dynamik gør den uundværlig i liveoptrædener såvel som i studieindspilninger. Gennem tiden har trommen udviklet sig med nye teknologier og fremstillingsmetoder, hvilket har resulteret i en lang række forskellige trommetyper og lydeffekter.
Ud over sin musikalske funktion har trommen også en symbolsk betydning i mange kulturer og ceremonier, hvor dens slag markerer vigtige begivenheder eller skaber en forbindelse til det spirituelle. Samlet set er trommen et essentielt element i musikproduktion og kulturarv verden over, og dens betydning kan ikke overses hverken historisk eller i moderne tid.