alt Hacker NewsI'm actually trying to build something similar to this for personal use, not as a product. What did you find was the most difficult technical step when building? I'm finding it particularly challenging to separate rhythm and lead guitar parts (both in terms of stem separation and also when transcribing by ear).
I've been working on it full-time since 2012, so it's hard for me to reduce 14 years' worth of work to a single "most difficult technical step."
Sorry, I don't mean to be rude or unhelpful, but that's not a question I can provide a meaningful answer to. There have been dozens, probably hundreds, of difficult technical challenges in building Soundslice.