John Clayton is a natural born multitasker. The multiple roles in which he excels — composer, arranger, conductor, producer, educator, and yes, extraordinary bassist — garner him a number of challenging assignments and commissions. With a Grammy on his shelf and eight additional nominations, artists such as Diana Krall, Paul McCartney, Regina Carter, Dee Dee Bridgewater, Gladys Knight, Queen Latifah, and Charles Aznavour vie for a spot on his crowded calendar