it's similar to being a vocalist, except instead of it coming out of your throat, you're controlling it just in the air and you don't really have a point of reference; you're always relying on your ears and adjusting constantly.
to je slično kao kada ste vokalist, samo što to ne izlazi iz vašeg grla, nego to kontrolirate u zraku i nemate zapravo uporište; uvijek se oslanjate na svoje uši i stalno prilagođavate.