Welcome To The Dance, with music by Phil Lesh and lyrics probably by Robert Hunter, was played by Furthur in 2009 and 2010. The song was played again in 2011 but with substantially different lyrics, possibly by Brian Lesh. The song may also have been played by Phil Lesh groups in the 2011/12 period.
Furthur
December 9, 2009, New York, NY December 30, 2010, San Francisco, CA April 5, 2011, Orlando, FL Oct 4, 2011, Las Vegas, NV Nov 12, 2011, Atlantic City, NJ