Elysium

If you're looking for a sequencer, Elysium might be the software for you. Its design centers around producing sequences of notes, and it allows you to layer these sequences to create full songs. Keep in mind that Elysium does not produce sound on its own, and instead uses MIDI to drive external instruments such as synthesizers and samplers. Thankfully, this MIDI output can be recorded and manipulated in your DAW of choice, like Logic or Ableton Live.

One unique aspect of Elysium is its generative approach to music creation. The software builds up a "system" comprised of layers, playheads, cells, and tokens, and these components combine to produce a sequence of notes when played. This opens up a fresh and exciting way to make music, especially if you're interested in exploring generative techniques.

Keep in mind that Elysium is a completely free software option, so there is no warranty that comes with it. As with any software, it's important to use it entirely at your own risk.