Follows lines in recordings (6)
I believe the answer is:
tracks
This clue is a double definition.
'follows' is the first definition.
'lines in recordings' is the second definition.
(track can mean a line or groove in a vinyl record)
(Other definitions for tracks that I've seen before include "Racecourses - dogs" , "where they chase hares?" , "Rough paths; traces" , "Marks left in ground by animals" , "Parallel rails" .)