https://www.washingtonpost.com/entertainment/music/wayne-jackson-trumpeter-of-memphis-horns-dies-at-74/2016/06/23/d0d8c8dc-394e-11e6-8f7c-d4c723a2becb_story.html He is not a household name but is probably the greatest trumpet player in rock and roll history. Think the horns on Sam and Dave's "Soul Man" which make the song. The Mar-Keys were part of the best studio musicians group ever combined with Booker T and The MGs at Stax/Volt records IMO. For a great video see The Stax/Volt Revue Live in Norway 1967 DVD.