Epicum, genitive Epicii
The phrase 'epic world' translated to Latin as 'heroicis mundi'
Just the word by itself? Epos.
The phrase means: Would you be wise if you knew wisdom?
There is nothing Latin about that phrase: epic organ solo is English and "cue" appears to be a feeble attempt at the Spanish word "que", what, as in "what a . . . .!"
Iste est
latin for do more with less
Melior
Pecatis meis.
in extension
The direct translation of the word music from English to Latin is musica. This is a very common Latin phrase that is still in use.
"bless we [the Lord]"
Semper amor.