BACKGROUND VOCALIST AND VOCAL ARRANGER.

BACKGROUND VOCALIST or "BGV":
Also known as "BACKING VOCALIST", this person sings a vocal arrangement behind the lead singer. It is a specialty field in professional singing which requires absolute excellence in blending, intonation, subtle tonal color changes and the ability to exactly mimic the recording or live singer's articulation, style and tone. Sometimes an artist does his or her own background vocals if they are good enough at hearing "parts" to do it, but even then it is best to decide if that same voice is what is needed or if a different voice would add necessary texture to the resulting sound.

VOCAL ARRANGER:
This service is most often associated with background vocals. Unless the project is very complicated, a vocal arranger can usually quickly create the arrangement at the recording session, and is in fact usually the VOCAL CONTRACTOR who suggests and calls the background singer(s) after consulting with the producer.