Join a CFS-hosted Celtic Session. All acoustic instruments welcome. We currently sport fiddles, whistles, bodhrans, bones, hammered dulcimers, accordion, mandolin, octave mandolin, guitars, and a bass. We've even been favored with flute, concertina, and harp along with an occasional ballad or rousing song. You'll need to join our exclusive Celtic Session email list (under Jams, Celtic)…