tracks 1, 2, 4, 6 arranged by Bobby Martin tracks 14 arranged by Dennis Williams tracks 9, 12, 13, 15 arranged by Dexter Wansel tracks 3, 5, 8, 10, 16 arranged by Jack Faith tracks 7 arranged by Ron Kersey tracks 9 to 16 bass Michael Foreman tracks 9 to 16 congas, bongos Larry Washington coordinator [reissue] Val Jennings design [album] Ed Lee tracks 9 to 16 drums Charles Collins tracks 1 to 8 engineer Arthur Stoppe tracks 9 to 16 engineer Carl Paruolo tracks 9 to 16 engineer Jay Mark engineer Joe Tarsia tracks 9 to 16 engineer Kenny Present tracks 9 to 16 guitar Dennis Harris tracks 9 to 16 guitar Roland Chambers tracks 9 to 16 guitar TJ Tindall tracks 9 to 16 horns, strings MFSB liner notes Kenneth Gamble liner notes [reissue] Tony Rounce tracks 9 to 16 organ Carlton Kent tracks 9 to 16 photography by Bill King tracks 1 to 8 photography by Don Hunstein tracks 9 to 16 piano Dennis Williams tracks 7 producer Bunny Sigler tracks 14 producer Dennis Williams tracks 1 to 6, 9 to 12, 15, 16 producer Gamble & Huff tracks 8, 13 producer Gene McFadden tracks 8, 13 producer John Whitehead tracks 14 producer The O'Jays tracks 8, 13 producer Victor Carstarphen remastered by Peter Rynston Phonographic Copyright (p) Assorted Music, Inc. Phonographic Copyright (p) Philadelphia International Records Copyright (c) Demon Music Group Ltd. Licensed From Assorted Music, Inc. Licensed From Philadelphia International Records Licensed To Demon Music Group Ltd. Published By Warner Chappell Music Ltd. Marketed By Demon Records Designed At Wildlife (6) Recorded At Sigma Sound Studios Remastered At Tall Order Tracks 1 to 8 originally released as LP Message In The Music in 1976 [Philadelphia International Records PZ 34245]. Tracks 9 to 16 originally released as LP Travelin' At The Speed Of Thought in 1977 [Philadelphia International Records PZ 34684].