keyboard [2, 4-7, 7-11, 13], programming [2, 4-11, 13]
vocal [2, 4-11, 13]
additional [2, 4-11, 13], bass [2, 4-11, 13], bass guitar [7]
assistant [2, 4-11, 13]
additional [2, 4, 4-5, 5, 5-6, 6, 6-7, 7, 7-8, 8, 8-9, 9, 9-10, 10, 10-11, 11, 13], guitar [2, 4-11, 13], producer [2, 4-11, 13]
guitar [2, 4-7, 7-11, 13]
engineer [2, 4-11, 13], mix [2, 4-11, 13]
additional [2, 4-11, 13], keyboard [2, 4-11, 13], strings [2, 4-11, 13]
drums (drum set) [2, 4-7, 7-11, 13]
additional [2, 4-11, 13], guitar [2, 4-11, 13]