Anthony jokingly likened the jams to an Irish pub where "everybody's singing the same song out of pitch."
A comfortable setting
In between songs during last week's session, some musicians strummed their instruments while others engaged in playful ribbing about their ages or playing ability as they sipped beer.
Though he had pizza at the most recent session due to the warm weather, Anthony usually cooks up hot dogs and hamburgers and buys some beer for the event, spending about $100 each time.
He does it because the jam attracts musicians who might not otherwise come to his business.
Baltimore resident Chris Bell, 37, for example, attended a jam session for the first time on July 18.
He admitted he was somewhat nervous about taking part, since he has only a couple of years of experience playing the guitar.
"I'm definitely impressed with the quality of people and it's very open," Bell said about 90 minutes into the event. "These guys are definitely ahead of me, but I'm picking up a few things as we go along."
Anthony showed Bell how to move his left hand to the proper fret on the guitar to make a B minor chord, for example.
At age 47, Scott Holokai was one of the younger musicians at the jam. He played a few riffs from the band Shinedown, which formed in 2002, and taught others the chord progressions.
Asked what drew him to this jam, the Catonsville resident, said, "Just wanting to play music, man."
"You can teach and learn at the same time," said Holokai, who has played since his preteen years.
Steve Jacousky, a harmonica player from Owings Mills, immediately injected a different energy to the group when he started playing at around 7:30 p.m.
Though he has played for about 30 years, he said the jam sessions have helped him improve his timing in a stress-free atmosphere.
"Everybody's really encouraging," Jacousky said. "It's not a contest about who plays the best."
Marian Chaprnka, a guitarist from Phoenix, was the only woman at the jam.
She said she has attended three since Christmas, with the first when the group met at the 8X10, a music venue in Federal Hill.
Chaprnka called the experience intimidating. She said she prefers jamming in the shop that's 45 minutes from her home.
"I heard it was really crowded here, but I heard it was a really good jam," Chaprnka said.
"Whether you're performance-ready or a beginner, you're just as welcome in this group."