Jason Crosby & Friends will perform on radio program Jam Nation this Sunday. Crosbys band will include guests Shannon McNally (vocals) and Kebbi Williams (saxophone), both of whom appear on his new album, Four Chords and Seven Notes Ago, due out April 7. Jam Nation airs from 8 – 10 p.m. every Sunday on Radio 104 WMRQ in Hartford, CT and online at www.radio104.com. It can also be heard nationally on XM Satellite (Ch. 43) Thursdays at 9 p.m., with encore presentations Fridays at 4 a.m. and 1 p.m., Saturdays at 1 a.m. and Sundays at 3 p.m.