Final answer:
The Allman Brothers Band recorded 'At Fillmore East', which is one of the most successful and critically acclaimed live albums of all time. It features Duane Allman's renowned guitar skills and was released shortly before his tragic death in a motorcycle crash.
Step-by-step explanation:
The critically acclaimed live album you are referring to is 'At Fillmore East' by the Allman Brothers Band. Duane Allman, the band's co-founder and lead guitarist, was involved in a fatal motorcycle crash shortly after the album's release. 'At Fillmore East' was recorded over the course of three nights in March 1971 and is often cited as one of the best live blues rock albums of all time, showcasing the band's mastery of improvisation and the blues genre. Duane Allman's slide guitar playing was a significant part of the band's sound and contributed greatly to the album's success.