Japanese progressive jazz fusion band known for blending intricate jazz arrangements with elements of rock and classical music. Formed in the late 1970s, the band features virtuosic performances with a focus on melodic development and rhythmic complexity. Their sound incorporates expressive guitar lines, dynamic keyboard layers, and tight rhythm sections, aligning with the fusion movement popular in the 70s and 80s. Though not as widely known outside Japan, NOA has developed a dedicated following among fusion enthusiasts.