This free software allows you to batch process a music folder's tempi; this means you can analyze the tempo of a lot of files really quickly. Once you have analyzed the files, it then adds the bpm to the files so you can sort by BPM in an audio player like iTunes.
You can organize playlists by BPM and then practice in a particular BPM range to your music without getting bored listening to the same song over and over and over and over...
Looper is a free, four track looper that is quantized to the metronome BPM and counts that I am developing. This program can be used to create a chamber ensemble with just yourself playing each part. Please let me know about any features you would like me to add .
The Amazing Slow Downer allows you to adjust the speed of an audio file so you can transcribe or practice along to an audio file at any speed you want. The pitch of the file does not change while you vary the speed. You can also export the audio file to be whatever tempo you wanted