It's here
The real Compute Gazette Sid Collection for real C64'S/ C128's
mono Sid's and Enhanced Stereo Sid music for downloading:

www.c64music.co.uk
move down to C64 version that contains:
The utilities should contain most of the players & editors.
Plain Sid's and .d81 images both are very large downloads.
There is UNZIP64V214 to load on a C64 only unzip the large .zip archive the 
drawback is you
will need a large disk drive.
C=1581 may not be enough disk space
CMD FD-2000 using Native mode partitions possibly?
CMD HD using Native mode partitions
UIEC2SD: create directory unzip archive here
CMD Ramlink possibly
MMC not sure

You could do the unpacking on a PC transfer each Sid artist files at a time.

If anyone has any problems with some songs not showing up in the player please 
let me know which
Sid Author and the songs that don't appear.
I cannot revive corrupted or bad files.
Enjoy this collection.

--- SoupGate-Win32 v1.05