music: Beatles Lyrics: "If the rain comes, they run & hide their heads, they..."?

Questions

This left-leaning solo guitarist sings mostly about politics & his lovers.?

This musical style is characterized by an excessive ornamentation.?

Well known deaf & syphilitic Teutonic composer.?

Beach Boys song from 1963, it was the B-side to "Surfer Girl."?

"acquainted with the touch of the velvet hand, like a lizard on a window pane."?