There is apparently no limit to the enthusiasm Boston area fans have for the Tedeschi Trucks Band, and thankfully, apparently no limit to the number of songs that can be transformed by that stellar 12-person musical troupe.Friday night was the middle night of the band's three-night stay at The Orpheum Theater in Boston, with nary a seat to be had, and after two-and-a-half hours of rock, blues, soul, gospel and jazz, the 2,300 fans were still roaring at the finish.