Fans of Phish, the Clinton-era jam band road hogs, had high hopes for a reunion last night when the band appeared at the Theater at Madison Square Garden to accept a Lifetime Achievement award at the 7th annual Jammy Awards. But instead the four members gave polite acceptance speeches and walked off without so much as an a cappella “Freebird.” The event was guitarist Trey Anastasio’s first public appearance in New York since entering a......