Music Together in the Keys will host a free class at the Key West Library’s Story Time sessions 10:30 a.m. Wednesday, March 22, and 11 a.m. Friday, March 24. The research, science-based Music Together program makes positive, lasting changes to young, developing minds. It depends on parent/caregiver participation, too. Two registered teachers will lead songs, dancing and a jam session for all. Bring your children to the library, 700 Fleming St. For more information on Story Time, visit www.keyslibraries.org or call (305) 292-3595. For more on Music Together in the Keys, visit www.musictogetherinthekeys.com or call (305) 797-1999.