33. Ricercar (Primo) alla quarta bassa (Andrea Gabrieli)
As you can see in the image above, the composer's name is not written on the piece, but quite by chance, we discovered that it is the work of Andrea Gabrieli. There are probably four copies of this Ricercar in the Torino Manuscript, and one of them, for which I have the data, contains this piece under the name of Gabrielli. That is the image below.
But there is one problem. I can find no corroboration, including IMSLP, that this piece is by A. Gabrieli. I am not an expert and do not have the ability to investigate further. So I have decided to take the liberty of thinking that perhaps I have found an unknown work by A. Gabrieli.
I tried to find out the composer of this piece, but unfortunately I could not identify him. Merulo, Andrea Gabrieli, and Frescobaldi came to mind as candidates, but there are no corresponding songs. After this. I believe there is a possibility that it will be identified.