Assertion: pop music | /r/AtLocation | eccentric songwriting
Facets:
value: at the same time
type: TEMPORAL
Source sentences:
text: At the same time, pop music on radio and in both American and British film moved away from refined Tin Pan Alley to more eccentric songwriting and incorporated reverb-drenched rock guitar, symphonic strings, and horns played by groups of properly arranged and rehearsed studio musicians.