Medford musicians Matt and Shannon Heaton host their monthly Virtual Guided Session, taking place on the second Saturday of the month instead of the usual third Saturday. Tune learners, second instrument players, or anyone who enjoys traditional Irish music are welcome for mid-tempo Irish tunes — jigs, reels and more — upbeat chat, and connection with other trad music lovers. Resources/tunes lists can be found on Shannon's website. Join the global community in the live session via YouTube. Cost is…