Growth fosters change, and the world of collegiate a cappella is no exception to this rule. With over 1,200 student-run groups in the United States alone, the movement the Yale Whiffenpoofs began in 1909 has become a genre with its own trends. In the 1980s and '90s, student a cappella groups shifted focus from classical and jazz arrangements to more beat-driven pop tunes. In the 2000s, the growing popularity of amateur mixing and mastering tools established the voice-filtering standard for studio albums. Now the proliferation of a cappella rating web sites and professional companies specializing in vocal mixing have raised the standard for these albums. Not to be left behind, the Rice Philharmonics have taken exciting leaps with their latest recorded effort, Phils So Good, mixed at North Carolina's Liquid5th studio and scheduled for release on April 26.