Can you add a cadenza where a fermata isn't indicated?

[throwawaynotreally]

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[cudo]

Do you mean at that point? ->

[ Invalid YouTube link ]t=281

[throwawaynotreally]

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[chopinlover01]

I did some years ago on a Haydn Concerto. I think it was the B flat major, though he probably wrote several in that key.

Also worthy to note, you can do this with romantic solo literature, as Rachmaninoff did with Liszt's Hungarian Rhapsody #2- worth a listen.

[throwawaynotreally]

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[chopinlover01]

Sorry, the F major. Second movement, which is in B flat major.