Mute a single track while recording
Is there a solution using the iPad without external controllers which allows muting while recording a single track? The idea is to (a) have some tracks playing (b) record a muted track then (c) un-mute the track and record a final track. The music in (b) and (c) would then be heard for the first time together.
I see some options which might work under external control, but unclear just using the screen.