BPM (Beats Per Minute) is the standard way of measuring the tempo of a song. A song with a constant tempo will always feel the same way, no matter how fast or slow you play it.

If you want to find the BPM for your song, use this free app.

It works for any music, as long as you have a microphone and the ability to detect the beats.

It also has a music spectrum, which you can see. This means you can see all the notes, and know which ones are the ones that are played.

So you can also use it to detect any instrument. It will also help you find the chords for your song.