Groovyband Live! is described as 'realtime arranger software that runs on any Windows PC (tablet, laptop, desktop), interfaces with MIDI input devices (keyboards, pedal board, control surfaces) and produces a live stream of MIDI events to drive a suitable sound generator' and is an app in the Audio & Music category. There are eight alternatives to Groovyband Live! for Windows, Mac and Linux. The best alternative is Impro-Visor, which is both free and Open Source. Other great apps like Groovyband Live! are Band-in-a-Box (Paid), JJazzLab (Free, Open Source), Melody Assistant (Paid) and Harmony Assistant (Paid).
Impro-Visor (short for “Improvisation Advisor”) is a music notation program designed to help jazz musicians compose and hear solos similar to ones that might be improvised. The objective is to improve understanding of solo construction and tune chord changes.
Band-in-a-Box is an intelligent automatic accompaniment program. You can hear and play along to many song ideas and go from "nothing" to "something" in a very short period of time with Band-in-a-Box as your "on demand" backup band.
JJazzLab is a free Midi-based application which automatically generates backing tracks (a musical accompaniment) for any song. It’s a jam buddy to have fun improvising, learn new stuff or just practice your instrument. It’s also a great tool for teachers.
Melody Assistant is dedicated to music writing, printing and rendering. Easy to use, Melody Assistant offers a user-friendly interface and powerful capabilities. Now used by a very active community of thousands of people, it has become a favored tool for creating music.