just stumbled over this:
/Commodore_Amiga/Retroplay/Commodore_Amiga_-_WHDLoad_-_Demos/M/MusicDisk2_v1.0_Elite.lha
Its not your fault, but i have to report, that the Disk image inside .lha archive is corrupt, various musics are not working!
100% working disk image is now available at Bitworld:
http://janeway.exotica.org.uk/release.php?id=6344