MFSB was a pool of more than thirty studio musicians based at Philadelphia’s famed Sigma Sound Studios. They worked closely with the production team of Gamble and Huff and producer/arranger Thom Bell, and backed up such groups as Harold Melvin & the Blue Notes, the O’Jays, the Stylistics, the Spinners, Wilson Pickett, and Billy Paul. In 1972, MFSB began recording as a named act for the Philadelphia International label. "TSOP (The Sound of Philadelphia)" also known as the Soul Train theme was their firs...

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