Alex Grover, director of Witch Pitch, an a cappella group at Salem High, leads a rehearsal Monday evening. Grover, who graduated from Salem High School in 2005 is now a graduate student at Boston University. The group will be having their first exclusive concert on Friday. From left, junior Renee Loughe, senior Anna Morsillo, Grover and junior Craig Simonetti.  Photo by Deborah Parker/May 24, 2010<br /> , Alex Grover, director of Witch Pitch, an a cappella group at Salem High, leads a rehearsal Monday evening. Grover, who graduated from Salem High School in 2005 is now a graduate student at Boston University. The group will be having their first exclusive concert on Friday. From left, junior Renee Loughe, senior Anna Morsillo, Grover and junior Craig Simonetti.  Photo by Deborah Parker/May 24, 2010
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