baritonal
/ˌbærɪˈtoʊnəl/Definitions
1. adjective
relating to or characteristic of the baritone voice or range
“The baritonal singer’s voice echoed through the grand hall.”
2. noun
a sound or quality that is reminiscent of the baritone voice or range
“The baritonal timbre of the old piano added to the nostalgic atmosphere.”