LMMS
Also on WindowsMakes music with a beat editor, piano roll and built-in instruments.
Installs from Ubuntu's own software archive.
Looking for FL Studio on Linux? LMMS does the same job for free, and TuxPick installs it for you.
Install LMMS with TuxPickIt works on Ubuntu 22.04 and 24.04, and on systems built on them like Zorin OS and Pop!_OS.