[1] Sax brought together the National Philharmonic Orchestra to make several notable recordings with Leopold Stokowski in the 1970s.
There were also CBS recordings made with Leopold Stokowski again at the West Ham Central Mission that included Sibelius's 1st Symphony and the Bizet Carmen and L'Arlesienne Suites, and at EMI's Abbey Road Studios where Stokowski made his very last recordings in 1977, of Mendelssohn's Italian Symphony and Bizet's Symphony in C. Bernard Herrmann was another conductor who recorded with Sax and the National Philharmonic, mainly in film music by himself and other composers, for the Decca / London 'Phase 4' label.
For Decca/London 'Phase 4' he recorded a selection of solo-violin-and-orchestra arrangements made by himself (short pieces by Tchaikovsky, Massenet, Korngold, etc.)
In addition, he played on a number of recordings for the Beatles, "Yesterday", "Eleanor Rigby", and "All You Need is Love" among them.
A further large part of his career involved playing on the soundtracks of many films, of a variety of genres, including The Pink Panther Strikes Again, The Boys from Brazil, Paper Tiger, Valentino, and Jesus of Nazareth.