'PlayMusic' command produces audio artifacts (clicking) when a music loop is restarted.

[supercom32]

Issue found using the latest version of Dragon Basic under Linux (Commit ID: d2ce042)

When using the 'PlayMusic' command, audio artifacts (clicking) can be heard when a music loop is restarted. This means on short loops, the users is constantly hearing a clicking sound that is distracting and a clear indication that looping music is being used.

Workaround: Replace 'PlayMusic' code from 'sound.f' with the original Dragon Basic code and the clicking sound will only occur on first loop. To further eliminate the initial first loop click sound, paste a copy of the interrupt code (from original Dragon Basic) immediately after the 'PlayMusic' code to bypass the first loop entirely.