theorists believe music was an attempt at social glue, a way to bring early humans together into a close-knit community, There also was a Neanderthal Flute made of bone, Nambians used a type of violin, it was a string strung around a stick like a bow and the used another stick to make tunes with the string.
I think that the answer is coins.
"Father of the tenor sax." Was Coleman Hawkins.
You write the Gb in the base; no chord members must be doubled because it's a seventh chord. To spell the rest of the chord you would find common tones between the last chord and the current tones (If the soprano had G in the previous chord give the soprano G in this chord). Once you've found your common tones, you'd then find close tones (if the tenor had Eb in the last chord give him D in this one). You then give the remaining chord member to the last part.