Crossword Genius

A good foundation for music? (4)

Ross

I believe the answer is:

rock

I'm a little stuck... Click here to teach me more about this clue!

This clue might be a double definition.

'a good foundation' is the first definition.
'rock' can be an answer for 'foundation' (thesaurus). I'm not sure about the 'a good' bit.

'for music?' is the second definition.
(rock is a kind of music)

Can you help me to learn more?

(Other definitions for rock that I've seen before include "to soothe baby" , "Swing" , "Lull (baby); 50s pop" , "Large stone - type of music" , "musical genre?" .)

I've seen this clue in the Sydney Morning Herald.
Want a hint initially instead of a full solution? Install my app