Step Sequencer

8 by 8 is 64

Linux 64bit
v6.5 2021-04-30 4.44MiB
Linux ARM64
v6.5 2021-05-01 4.40MiB
Mac Universal
v6.5 2021-05-04 4.88MiB
Windows 64bit
v6.5 2021-05-01 2.65MiB
Linux 32bit
v6.5 2021-04-30 4.23MiB
Linux ARM
v6.5 2021-05-01 4.14MiB
Mac ARM
v6.5 2021-05-04 1.58MiB
Windows 32bit
v6.5 2021-05-01 2.50MiB

source-code (all platforms)

screenshot