"Proof Positive," released by J.J. Johnson on Verve in January 1964, is a quintessential jazz album that showcases the trombonist's mastery across various jazz styles. Recorded in May 1964, this album is a testament to Johnson's versatility, blending hard bop, bebop, and cool jazz into a cohesive and captivating collection. The album features six tracks, each offering a unique perspective on Johnson's artistry. "Neo," the opening track, sets the tone with its intricate composition and Johnson's signature trombone sound. "Lullaby Of Jazzland" and "Stella By Starlight" provide a cool jazz vibe, while "Minor Blues" and "Blues Waltz" delve into the blues-infused hard bop and bebop territories. "My Funny Valentine" adds a touch of romanticism to the album. Recorded during Johnson's Third Stream phase, "Proof Positive" is a timeless addition to any jazz enthusiast's collection, offering a rich and diverse listening experience. The album's duration of 37 minutes is packed with musical depth and innovation, making it a standout release in J.J. Johnson's discography.