His recordings of Bach (two outstanding early ones for the Lyrichord Discs label) and Scarlatti (29 LPs with 346 sonatas for Westminster Records, recorded 1951 - 1961, another 8 sonatas for Music Guild in 1962, and a final set of 12 previously recorded sonatas for the Musical Heritage Society in 1964) were highly regarded, and he was regularly mentioned in the pages of National Review by William F.
Buckley Jr..
In one of the odder musical pairings of the 1960s, Valenti was on the same bill as Jimi Hendrix on Thanksgiving night, November 28, 1968, at New York's historic Philharmonic Hall.