File list (Check if you may need any files):
PWM_music\Last Loaded ledhexnew.DBK
.........\new2.hex
.........\ledhexnew.DSN
.........\ledhexnew.PWI
.........\PWM_music.mcp
.........\_desktop.ini
.........\音乐实验LPC.PWI
.........\src\config.h
.........\...\IRQ.s
.........\...\LPC2294.h
.........\...\main.c
.........\...\mem_a.scf
.........\...\mem_b.scf
.........\...\mem_c.scf
.........\...\music.h
.........\...\Startup.s
.........\...\target.c
.........\...\target.h
.........\...\_desktop.ini
.........\PWM_music_Data\CWSettingsWindows.stg
.........\..............\RelInFLASH\TargetDataWindows.tdt
.........\..............\DebugInRAM\TargetDataWindows.tdt
.........\..............\.......FLASH\PWM_music.axf
.........\..............\............\TargetDataWindows.tdt
.........\..............\............\ObjectCode\Startup.o
.........\..............\............\..........\target.o
.........\..............\............\..........\IRQ.o
.........\..............\............\..........\main.o
.........\music\music-1.h
.........\.....\music.h
.........\.....\_desktop.ini
.........\Last Loaded 音乐实验LPC.DBK
.........\new.hex
.........\PWM_music_Data\DebugInFLASH\ObjectCode
.........\..............\RelInFLASH
.........\..............\DebugInRAM
.........\..............\DebugInFLASH
.........\src
.........\PWM_music_Data
.........\music
PWM_music