Re Joe Offer's question about circles in/near Salem,Or. There are a lot open jams where you can sing or play. Several are heavy into Bluegrass. In Dallas, 10 miles from Salem is an acoustic jam every Friday at Guthrie Park. In Salem at Spiotti's Coffee House Saturdays, except first Sat of the month. A lot of old time folk/fiddle music. Sing if you want. Some swing is creeping into the Guthrie jam.