Gaz Rendar | ZOOM R20 Tempo and Metronome: Tips and clarifying misconceptions about time adjustments @GazRendar | Uploaded August 2022 | Updated October 2024, 2 hours ago.
The R20 has a click track that can be independently routed through the monitor out or headphones. You can also adjust the tempo of the song in the project settings in a variety of ways. However, changing the tempo of the song and metronome does not always change the tracks in the ways you might initially think it would. This tutorial demonstrates the different click track sounds and options and explains how changing the R20's tempo will or will not change recorded audio and MIDI tracks.

Featuring the sounds of a PO-128 Pocket Operator.

Other tutorials mentioned in this video:
How to time stretch audio files on the R20
youtu.be/vHLHkb5ZFD8

The R20 as a MIDI instrument
youtu.be/TIRmae3ywaw