Comment 2 for bug 657399

Quod Libet has an interface for seeking within the current song.
You just have to invoke another instance from the commandline to try that:

quodlibet --seek=[+|-][HH:]MM:SS

Listen music player can also be controlled via commandline:

listen --[rewind|forward]

Although you can't specify the time, it would be nice if a click in the seekbar before or behind the actual position would result in listen skipping forward or backwards.

I tried that with both players and was able to seek/skip within the playing song.
When the song is paused when skipping panflute does not update the position.
When playing the position is updated after a second.