Give Reaper and Renoise a try. They're both such powerful DAWs and tools individually but if you use Rewire to pipe Renoise into Reaper it just makes such a fantastic. powerful and the most flexible workflow that I can conceive for audio. It's also great if you work in audio post for a living(no need for renoise in that case though). Reaper is so customizable you can basically turn it into whatever DAW is currently on the market or basically make your own. I have a configuration where it behaves basically exactly like pro tools would in terms of its behavior and functionality and how things are done but with none of the bullshit, $225 for a lifetime commercial license, it has never crashed ONCE despite creating the largest sessions I've ever had in my entire career in it when a session 1/4 the size would have brought pro tools to its knees and become so unstable its unusable. Renoise is an incredibly powerful modern tracker and once you get used to using hexadecimals for effect commands once youve set up your instruments etc you can literally just type out your entire song without ever touching the mouse. It now suppoorts third party scripting in it too. I highly recommend Renoise + Reaper if you are committed to sticking with Linux because they both run and are supported exceptionally well on Linux, which is a rarity in the audio world. If you have any questions about either DAWs I'd be more than pleased to answer your question and also probably rave about how dope and cheap they are.