Maybe you know about Sonic Pi, the system to learn programming playing with music. Now I want to give it a try in my system (Fedora 23) and my sysadmin-TOC syndrome obligues me first to package it into RPM. Now I have good and bad news. The good news are I have a testing release of Sonic Pi for Fedora 23. It includes a desktop file too. The bad news are... it doesn't work yet. Sonic Pi uses jackd while a common Fedora Workstation uses pulseaudio and both try to manage the sound device by themselves.
After a quick googling seems possible to get a procedure for using some working configuration for puleaudio+jackd but I didn't have the time to find and check them. Meanwhile, if the RPM package is useful for someone here it is.
Please feedback here if you know how to make sound to work.
PD: Post edited to add references to Planet CCRMA repositorie.