How do i change music players?

[ohrenkino]

MP3tag uses the default player that you set for the file type.
You can set a special tool for the double click.
Here is a thread on how to set up such a tool:

MCool player as external tool

MCool is a very lite player, which can display also the external *.lrc lyrics files as karaoke when playing any audio, which has the lyrics external *.lrc file. To make it as your default player without changing your actual default player (for example: the Windows Media Player), open MP3Tag and select: Tools ►Options and click New: Name: Play with MCool Player Path: C:\Program Files\MCoolPlayer\mcool.exe Parameter: "%_folderpath%%_filename_ext%" for all selected files […