fillo4100 yes you can slow down whenever you want , tap on song properties use the speed fader to slow down than tap twice the stop button, this will exit the song properties with the first tap and stop play on the second tap, it can be done but it’s awkward. Don’t forget later to undo the speed change or the song won’t play correctly next time you use it.
My suggestion is use a DAW and edit the speed change in permanently, I know, this kills the spontaneity 😩
Perhaps foot pedal speed control than stop might work better in achieving this but you still have to restore the setting after.
Peter, It might be nice if we do a speed change by finger on screen , this becomes a default speed of the song but if we use the foot pedal it’s a temporary change only so you always get the song to play at the correct speed next time you play it, that would make life easier.