plenty of jazz stations online but I was recently on vacation in Oregon and came upon http://www.kmhd.org/ which seems to me to be outstanding (I'm sure the Portland hipsters among us have known this for some time) This is my quickest sweetest access to some great walking bass I was fortunate enough to listen to ' the gold standard' http://www.kmhd.org/programs/42 last Saturday. I had only seen Sonny Stitt and Cliifiord Brown's lines in music books and had never heard them played. Some nice walking bass work. So for the advice to listen listen listen -- here's one sweet easy way. Feel free to add other stations.