"Blues is the Rosetta Stone of music - a key to understanding." Jim Colegrove: Poetic Notes & Cool Groove Jim Colegrove has had a long and distinguished career in American music. He was born in Springfield, Ohio and began playing French horn and trumpet at age nine. He took up the guitar at age thirteen. A few years later, in 1958, he was cofounder of the rock ’n’ roll band Teddy & the Ro…