Nouns

(n)translator, transcribera person who translates written messages from one language to another
(n)transcribersomeone who rewrites in a different script
(n)transcribersomeone who represents the sounds of speech in phonetic notation
(n)transcribersomeone who makes a written version of spoken material
(n)arranger, adapter, transcribera musician who adapts a composition for particular voices or instruments or for another style of performance