Here is the official word from the Los Angeles Times obituary page,
Trumpet player Alan Rubin was recruited to join the Blues Brothers after backing up John Belushi and Dan Aykroyd in the "Saturday Night Live" television skits that spawned the band in the late 1970s.
One of many gifted session musicians in the group, Rubin became known for his movie portrayal of head waiter Mr. Fabulous in 1980's "The Blues Brothers" and a 1998 sequel.
Rubin died Wednesday of lung cancer at Memorial Sloan-Kettering Cancer Center in New York City, said his wife, Mary Moreno Rubin. He was 68.
He was a premier New York City session musician who was "sought out for his expertise in playing every style of music — from classical to jazz to blues to rock and disco — authentically and artistically," the Original Blues Brothers Band said in a statement.
When asked about his professional biography, Rubin liked to say: "Been everywhere, played with everyone."
Read the rest here. Remember this scene with Rubin?
Here he is backing up Jake and Elwood with the rest of "the Band," ahem, and the constabulary of the Greater Chicago area. Did I mention the Nazi Brownshirts too? The whole clip is available at You Tube. Below is a snippet.
Ow...That dude could play. Say a prayer for Mr. Rubin's soul, and also for his loved ones who mourn their loss. Thanks for the music Alan, and thanks for the memories!