Medford musicians Matt and Shannon Heaton host the Holiday Edition of their Virtual Guided Session. Tune learners, second instrument players, or anyone who enjoys traditional Irish music are welcome for moderately paced Irish tunes -- jigs, reels and more -- and jolly 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 free, but virtual tip jars are available via PayPal or…