Hello,

I use iReal Pro on my iPad to practice bass. At the beginning I listen the track with the bass louder than the other instruments to get acquainted with the bass line.
During listening "All The Things You Are" (from the Jazz 1350 playlist) I have noticed, that when I stop and start the player again (the current position marker jumps back to the first bar) the bass line changes during the first four bars (maybe it continues different over the following bars, however I can not memorize if it is different or the same I heard the time before. I think I have recognized two or three versions of the bass line, which cyclically change as I start and stop the player.

Thanks in advance for any hints, explanations...