Syntax

Syntactic actants

Actant 1: whose voice it is
(a) Genitive
(b) Possessive
Голос певицы поражал своим диапазоном. The range of the singer's voice was amazing.
Мне нравится её голос. I like her voice.
NB When the word голос functions as a subject and does not have a descriptive modifier, the construction голос у + Genitive is often preferred to (a) and (b), above:
Голос у Марии был небольшой, но чистый. Mary's voice was small, but clear.