I think that Tigloo (tell me if not ) want an absolute positioning but the scale for the positining will be different that for fast forward.

If possible, it could be with the knob button like when scanning FM Band.

When you'll rotate it , the position of song appears and it will be in real time poistioning.

Or the same way but jump to every 20 s cut off the song.

I mean 0s 20s 40 s etc of the song.

We can also imagine that this parameter could be user set.