Vocal coach
A vocal coach, also known as a voice coach (though this term often applies to those working with speech and communication rather than singing), is a music teacher, usually a piano accompanist, who helps singers prepare for a performance, often also helping them to improve their singing technique and take care of and develop their voice, but is not the same as a singing teacher (also called a "voice teacher"). Vocal coaches may give private music lessons or group workshops or masterclasses to singers.