What makes S.R.O. by Herb Alpert notable?

'S.R.O.' reached number one on the Billboard Top LPs chart, showcasing Alpert's ability to craft commercially successful music that retained a sophisticated edge. The album also contributed to the Tijuana Brass sound that defined 1960s instrumental pop, influencing countless artists within the genre. Released in 1966, 'S.R.O.' was Herb Alpert's fourth studio album and solidified his popularity following the massive success of 'Whipped Cream & Other Delights'. At this point in his career, Alpert was becoming a prominent figure in the crossover jazz scene, effectively merging jazz with pop sensibilities and appealing to a wider audience.