Complex sentence: He recorded a second version on May 1,1957, arranged and conducted by Gordon Jenkins, which was released in 1957 on the album "Where Are You?", which was Sinatra's first recording for Capitol Records and his first stereo recording.
Split into simpler sentences: He recorded a second version on May 1,1957, arranged and conducted by Gordon Jenkins, which was released in 1957 on the album "Where Are You?". This album was Sinatra's first recording for Capitol Records and his first stereo recording.