On a Monday night in Syracuse, New York, guitar cases line the walls of a hotel meeting room. Around 70 players, many cradling their instruments, are listening to a presentation by singer-songwriter Tim Burns, leader of the local Americana band Two Hour Delay. Burns is sharing ideas on how to back up another guitarist, and to demonstrate, he’s invited to the stage John Cadley, a veteran of the bluegrass/country scene in upstate New York and beyond (Lou Reid & Carolina once topped the bluegrass charts with Cadley’s song “Time”).