Some eBay listings advertise a "Sky Prog USB Programmer" for $9.99. This is a generic ST-Link or FTDI board. It will not edit channel lists; it is for flashing firmware. Do not confuse software with hardware.
Assuming a common CH341A-style Sky Prog programmer and a SPI flash chip target. sky prog programmer free
Could you clarify:
If you want a free, powerful tracker/sequencer for progressive electronic music today, I'd recommend OpenMPT (Windows) or SunVox (cross-platform). Some eBay listings advertise a "Sky Prog USB