Deaths (Obituaries)

In San Francisco, he joined jam sessions with the Grateful Dead and recorded with band members on the 1971 solo album by the Dead’s drummer Mickey Hart, “Rolling Thunder.”Mr. Hussain studied and taught ethnomusicology at the University…

Mark F. Bear, a professor of neuroscience at the Massachusetts Institute of Technology, who studied under Dr. Cooper at Brown in the late 1980s, called the B.C.M. theory “foundational” in the field of neuroscience.“The theory made…

Phil Lesh, whose expansive approach to the bass as a charter member of the Grateful Dead made him one of the first performers on that instrument in a rock band to regularly play a lead role rather than a supporting one, died on Friday.…