Hi there,
I use Music Speed Changer to speed up / slow down ballroom dance music. Due to the complexity of ballroom dance music the automatic BPM detection sometimes fails (mostly if the beat is too smooth like in slow waltz), but I have saved the correct BPM in the mp3 BPM tag. Would be great if you could decide either to have automatic BPM detection or to use the BPM value stored in tag.
Regards, cpschnuffel