What is the striking contrast between the labor causing the frozen shoulder and the labor causing the finger nerve damage?

The first stemmed from fine, repetitive listening/re-playing; the second from manual labor like grinding/pressing.

A fascinating contrast exists between the two primary physical ailments that halted Frank Marino’s career. The initial condition, adhesive capsulitis (frozen shoulder), arose from the crucible of the five-year audio restoration project for the *Live at the Agora* DVD. This task required fine, precise, and repetitive motion—specifically, painstakingly discerning and replaying corrupted drum tracks through focused listening. In contrast, the second injury, a damaged nerve in his left index finger, resulted from the manual labor required for his pedal line assembly, involving actions such as grinding and pressing components. One injury stemmed from meticulous auditory precision work, while the other arose from physically assembling the tools used to create sound.