Spectacular Class Jontavious Willis - Kind of Blue Music - Through original lyrics written by Willis himself, the gifted musician delivers a timeless album that features dynamic vocals and all types of blues: Delta, Piedmont, Texas, and Gospel. His stand-out fingerpicking, flat-picking, and slide prowess are also on display. GRAMMY award-winning artists Taj Mahal and Keb' Mo' played an active role in producing Spectacular Class with Taj Mahal credited as Executive Producer and Keb' Mo' as the Producer.