What are the instruments used in the song, "a change is gonna come."

Sam Cooke – lead vocalsSR Crain – backing vocalsPaul Foster – backing vocalsJimmie Outler – backing vocalsRichard Gibbs – backing vocalsJJ Farley – backing vocalsRené Hall – guitarNorman Bartold – guitarArnold Belnick – guitarClifton White – guitarChuck Badie – bass guitarEarl Palmer – drumsHarold Battiste – pianoWilliam Hinshaw – French hornEmil Radocchia – marimba, timpani, percussionWilliam Kurasch – trumpetLouis Blackburn – tromboneJohn Ewing – tromboneDavid Wells – tromboneHarry Hyams – violaAlexander Neiman – violaIsrael Baker – violinIrving Lipschultz – violinLeonard Malarsky – violinJack Pepper – violinRalph Schaeffer – violinSidney Sharp – violinDarrel Terwilliger – violinTibor Zelig – violinEmmet Sargeant – cello

Pop music is music that is popular made by popular artists