Compose tritest forms of Italian fugues (7)

I believe the answer is:

stretti

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'forms of italian fugues' is the definition.
The definition suggests a plural noun which matches the answer.

'compose tritest' is the wordplay.
'compose' indicates an anagram.
'tritest' with letters rearranged gives 'STRETTI'.

Can you help me to learn more?

(Other definitions for stretti that I've seen before include "fugal devices" , "Pieces of music" , "musical pieces" , "Musical passages" .)

I've seen this clue in The Telegraph.

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