Ibara's VA was a guest on the final installment of KuwaP Studio: Trip and he was asked if Eden don't hold pre-recording meetings to adjust the key of songs. His answer was that they never do since they will be able to hit any note anyway. Except he said it several times over and over, in an increasingly more amused tone. Considering Ibara holds the record of highest note ever hit in an Enstars song, I thought it would be in-character for Ibara to similarly boast about his vocal range in-universe.