What are some alternatives?
When comparing Ableton and Renoise, you can also consider the following products
NanoStudio - NanoStudio is a recording studio for iOS, OS X and Windows.
ACID Pro - Meet the new version: ACID Pro 9 is where creativity meets inspiration, a DAW designed for every producer to realize their music making ambitions.
AudioKit Synth One - Free & Open-source iPhone/iPad Synth 🎹
Zynewave Podium - Podium is a modern digital audio workstation (DAW) for Windows.
Sampulator - Make (and record) beats on your keyboard
Harrison Mixbus - A full-featured Digital Audio Workstation (DAW) by Harrison with mixing that mimics the properties...