That's a bummer. I really dig the Allmans too.
I've seen them a bunch of times and one of them was one of the best concerts I've ever seen. They played a smallish venue in Cleveland call Nautica Stage right on the Cuyahoga River, with a band called The Kinsey Report. The Kinsey Report was a badass blues band, but the lead singer/guitarist had previously spent time recording and touring with Peter Tosh and Bob Marley (separately), so when TKR played reggae, it was top notch. TKR opened and tore it up, then TABB tore it up, then both bands took the stage and absolutely fucking demolished it. Great memory.
Thanks, Dickey. RIP.