What is the correct way to say "Unknown music from the South" or "Unknown musicians from the South" in latin?

Question

I'm about to publish a series of electronic music releases from three up-and-coming Australian producers/musicians. I thought I'd name the series as a word play or reference to "Terra Australis Incognita" but replacing Terra with either Music or Musicians.

"Unknown music from the South" or "Unknown musicians from the South".

What would be the correct way to write this? I came up with:

• Musica Australis Incognita
• Musicus Australis Incognita

Answer 1

Musica Australis Incognita is correct and I recommend using it.

Musicus Australis Incognita is not quite. If you want a single musician, the last word has to be incognitus because it has to be the same masculine gender as musicus.

If you want multiple musicians, the plural looks even more different: Musici Australes Incogniti.

The wordplay loses power when the difference grows, so I suggest the first option with "music".