(from MacMusic) Convert values for musical use. You can calculate the time stretching to use on a sample if you change the tempo for another, or the number of semi-tone to transpose, the time stretching to apply if you transpose a sample and you don't want to change the duration, the delay in ms to synchronise with BPM, and a tap delay functiun. Tap the beat on you keyboard, and the software tell you what is your tempo.

Music Math 2.2