Soul
Musical Fingerprints
Instrumentation: Vocals (main and backing), piano, bass guitar, electric guitar, drums, strings, brass/horn section, Hammond organ.
Texture: Thick textures.
Melody: Use of call and response (gospel influence). Bass lines are mostly riff based. Vocalists often improvise.
Harmony: Use of pentatonic scales (jazz influence) and blue notes (blues influence)
Technological Fingerprints
In the early days of soul, plate reverb would have been used to add reverb to recordings.
Even though technology has developed to allow for overdubbing and multitracking, some (not all) soul artists/producers still prefer to record the whole ensemble at once in an ambient style as it maintains the ‘live’ feel.
Extreme panning is often applied to multitrack recordings.
Most recordings are quite heavily compressed.
Artists
Ella Fitzgerald, Aretha Franklin, Stevie Wonder.