If moods were cars, the Prairie Fire Lady Choir would have brakes suitable for NASCAR.
An indicator of how well the 40-member rock 'n' roll-flavored vocal group balances cool, casual fun with rich emotional depth, the choir went from high- revving laughter to a muted stillness in a matter of seconds during rehearsals last week at McNally Smith College of Music in St. Paul.
The abrupt halt came as PFLC member Lisa Heyman explained the origins of a song she wrote for the choir, a mostly amateur group that has been teaching its members to express themselves over the past six months.
"I wrote this about two young people who passed away," said Heyman, whose own kids were friends with the deceased.
Titled "Porch Light" — "I'll leave the light on," goes the refrain — the song would be a moving tribute in the hands of any solitary folk singer. It sparks a whole other level of emotion coming from the mouths of 40 women tenderly singing in unison.
A group that made its mark reinventing songs by Prince, Metallica, TLC and Magnetic Fields, the Prairie Lady Fire Choir is in the midst of change.
The choir started informally four years ago in the living room of 89.3 the Current DJ Jacquie Fuller (she is no longer a member), and has performed everywhere from community centers and garlic festivals to the Zombie Pub Crawl and First Avenue. On Friday, the PFLC takes over the Cedar Cultural Center to debut a batch of 14 original songs.
Titled "The Songbird Sessions," Friday's performance is the culmination of a series of songwriting workshops — paid for with a grant from the Metropolitan Regional Arts Council — which paired the choir's members with popular local singer/songwriters such as Aby Wolf, Chastity Brown and Dessa.