To "live DJ" there's the extremely famous https://virtualdj.com/ To create prerecorded DJ sets https://www.mixmeister.com/ Been using both for at least 10 years, love them both. - Source: Hacker News / 5 months ago

Not open source, but free for "home use" https://virtualdj.com/. - Source: Hacker News / 5 months ago

I started with Virtual DJ to get used to the software latency (I came from turntables) and get my muscle memory on button locations (which is why I stayed with the same brand). VDJ has every feature you need. The software is free to use without a controller from virtualdj.com. Source: over 1 year ago

A lot of the places that do it from scratch I notice use https://virtualdj.com/. Source: almost 2 years ago

DJ software, like VirtualDJ will have features that are more conducive to what you're trying to do, like live looping functions that help you lock the loop to the beat. It's also cheaper (free for non-commercial use without a hardware controller) than QLab, and it's cross-platform (QLab is Mac-only, if that matters). Source: about 2 years ago

If you want simple, reliable, and without the need of external instruments, check out Bosca Ceoil. Source: about 1 year ago

Hey folks. I'm no kind of musician - the best I can do is whistle. But I've had fun with Bosca Ceoil and I'd like to find something equally simple yet with a good variety of instruments so that I can noodle about with audio fragments when I'm travelling. Can anybody suggest something worthwhile? Source: about 1 year ago

Intriguing! Thank you for that image, very useful. Sunvox, eh? I'll take a look, though it's probably over my head! I have trouble with Bosca Ceoil...! Source: about 1 year ago

I am not making music yet, but if I were, I would be looking into ProjectSAM (free orchestra) and Bespoke Synth (free modular DAW). Also, I found Bosca Ceoil to be good for retro video game music as the files it creates are small and work well with source control. Source: over 1 year ago

I made all of the sounds myself in either BeepBox (https://www.beepbox.co/) or Bosca Ceol (https://boscaceoil.net/). The sound of the bar going up and down is just a long humming sound that I loop and change the pitch of based on how full the bar is. For the collision sound, on CollisionEnter2D I add together Brian's velocity X and Y, and use that as a modifier for the volume of the collision - so it will be a... Source: over 1 year ago