Well I can't get it working... This is ghow I did it:
BASS_Init(1, 44100, BASS_DEVICE_SPEAKERS, Me.hWnd, 0)
chan = BASS_StreamCreateFile(BASSFALSE, FileName, 0, 0, BASS_STREAM_DECODE)
chanFX = BASS_FX_TempoCreate(chan, BASS_SPEAKER_REAR)
BASS_StreamPlay(chanFX, 0, 0)
...Help, please!