The Oh Hellos are ostensibly a collaboration of Texas siblings Maggie and Tyler Heath. While that sweet familial bond can be heard in many of their prettier, folksier moments, the band is at its foot-stompin’ best at full strength, which often means as many as 13 musicians on stage. The group has a well-deserved rep for explosive live performances, as audiences from coast to coast have discovered. See for yourself when the Oh Hellos drop by the Higher Ground Ballroom on Wednesday, July 23. Local songbird Rachel Ries opens the show.