"Recorder players are most comfortable in sharp keys"
At first sight of the sentence I mistakenly thought "recorder player" was something like a recorder set, but I soon realized that might be a performer whose performances are recorded.(I am not quite confidence with my grammar and tenses here:))
But, still, I am a bit confused about the meaning of this sentence.
Does it mean "a player in recording will do his best in sharp keys" , or "for playing in sharp keys, recorder players are the most suitable among all kinds of players"? Which understanding is more reasonable?