I like to compose music in Online Sequencer, but ever since my computer went kaput, I've been using this handy little tool in Bandlab! I actually really enjoy it, I might keep doing this (composing songs in Online Sequencer, putting them together/editing in Bandlab, or using Bandlab entirely when on the go)
Just choose Virtual Instruments, choose your instrument to start with, and go to this funky little guy in the bottom corner!















