Horace Silver, Live At Newport ’58 (Blue Note). It is a treat to hear a newly discovered live performance by the pianist, composer and bandleader whose quintets were among the most interesting and stimulating of the so-called hard bop period. Tenor saxophonist Junior Cook and trumpeter Louis Smith had a good day as soloists. It is unlikely that Cook — consistently excellent, always underrated — had bad days. Smith was in and out of the band quickly. He is impressive, particularly in the construction of his solo on “Senor Blues.” Silver was playing at the top of what producer and annotator Michael Cuscuna calls his “quoteaceous” game. He drives along with the yeoman support of bassist Gene Taylor and drummer Louis Hayes, riveting attention on each tune and coming up with a remarkable solo on the final track, “Cool Eyes.”