Baltimore definitely has a lot of great bands. I would add these musicians to my list:
Ami Dang
Arboretum
Archer twins
the Art Department
Beyond Say
Chester Endersby Gwazda
Co La
dDM
DJ Dog Dick
Dog Leather
Dungeonesse
Dustin Wong
Ed Schrader's Music Beat
Flock of Dimes
The Flying Eyes
Height
Holy Ghost Party
Jacober
Lands & Peoples
Lower Dens
Mickey Free
Moss of Aura
Mother Sun Flower
Mr. Moccasin
Other Colors
Oxes
Pfisters
Ponytail
Raindeer
Rapdragons
RUN DMT
Shark Tank (mostly Baltimore)
Sick Din
Sick Weapons
the Snails
SOft Cat
Sri Aurobindo
Teeth Mountain
VideoHippos
Weekends
Which Magic