交響アクティブNEETs (Symphonic Active NEETs) is a dynamic Japanese music ensemble, well-known within the doujin music scene for their richly-orchestrated renditions of music from the "Touhou Project," a popular series of bullet hell shooter games created by Team Shanghai Alice. Their name, while playful in tone with the use of "NEET" (an acronym for "Not in Education, Employment, or Training"), belies the professionalism and musicianship they bring to their craft.

Famous for their "東方フィルハーモニー交響楽団" (Touhou Philharmonic Orchestra) series, Symphonic Active NEETs has developed a discography that interprets the whimsical and intricate compositions of Touhou's music in a classical symphonic context. Each album often follows a thematic structure, focusing on music from specific Touhou games or thematic elements, as seen in releases like "東方フィルハーモニー交響楽団11 神" and "東方フィルハーモニー交響楽団10 秘". Their dedication to the fusion of classical music traditions with modern game music has not only resonated with fans of the source material but also with those who appreciate the classical genre, earning them a distinct place in contemporary orchestral circles.