How to make a track in Tabletop, part 3

Continued from part 2

I listen to the two tracks together, bringing the volume back up on the 'Gridlok' track.  I tap the keyboard icon in the top right to open the device menu.  I select the 'RS3', a keyboard synth/sequencer, another free device included with Tabletop.  I choose a new patch from the load menu (in the window in the middle of the keyboard) hit record and overdub a simple synth part.

I zoom out and tap the mixer, turn down the other tracks, and solo the 'RS3'.  I zoom out again and tap the session button and select share to soundcloud.