College bands often have an ephemeral quality, because when they leave the sheltered existence of the campus, the pressure of climbing up the professional ladder threatens to rule their lives at the cost of their music. But in some cases -- most notably with Irish rock gods U2 -- musical associations formed in pre-adulthood crystallise into an outfit that stands the test of time. One hopes that the same happens with the finalists of Parx Hunt, an all-India competition for college bands that culminates at a Worli hotspot this evening.