In 1973, Baltazar played sax and flute in the famous "Elvis: Aloha from Hawaii" concert. Gabe Baltazar played sax and flute in the famous 'Elvis: Aloha from Hawaii' satellite broadcast concert and had a close-up flute solo during 'An American Trilogy' ('Battle Hymn of the Republic').
(Source: ElvisMatters / Facebook Elvis in the 70's)