What makes Old Locks and Irregular Verbs by Henry Threadgill notable?

The album received critical acclaim for its innovative approach to jazz composition, earning Threadgill the Grammy Award for Best Jazz Instrumental Album in 2017. It significantly contributed to the discourse on contemporary jazz, highlighting Threadgill's unique voice and style within the genre. By the time 'Old Locks and Irregular Verbs' was released in 2016, Henry Threadgill had already established himself as a leading figure in avant-garde jazz. This album marked his return after a four-year hiatus following 'In for a Penny, In for a Pound', showcasing his continued evolution as a composer and bandleader.