The characters in Nine Volt Heart are all fictitious. Those are dopplegangers of Pete and Jamie who appear in Chapter 11, when the protagonist describes a night at The Family Wash in East Nashville.
What’s the point of being at The Family Wash? Same as the point of Nine Volt Heart:
To enjoy live music. Live music is always best.
@FamilyWash – The Yin in the Yang of Your Life
Heresy, Heists and Rain 