who pays the piper calls the tune

Etymology
From the classic legend, The Pied Piper of Hamelin.

Proverb

 * 1) The person paying for something is the one who gets to say how it should be done

Translations

 * Catalan: qui paga mana
 * Central Franconian: wä de Musik bestellt, dä bestemmp, wat se spillt
 * Estonian: kes maksab, see tellib ka muusika
 * Finnish: kenen leipää syöt, sen lauluja laulat
 * German:
 * Polish: kto płaci, ten wymaga
 * Russian:
 * Scottish Gaelic: 's e am fear a phàigheas am pìobaire a stiùireas am port