M1-M3: Collected Works and Monuments -- Generally non-circulating
Here you will find scholarly editions of musical works. Of particular note, M2 contains monuments of music, also known as Denkmäler. These are anthologies of notable works of a particular region, time period, or genre. M3 contains the collected works of particular composers. Refer to Anna Harriet Heyer's Historical Sets, Collected Editions, and Monuments of Music and George R. Hill and Norris L. Stephens's Collected Editions, Historical Series & Sets & Monuments of Music for help finding works in these editions. Once you have located a work in one of these editions, you can search the edition in Library Search to confirm that we have it. Feel free to ask for help with this process if you need it.
Here are some examples of monuments of music. Notice some of the titles you can see, like Early Sixteenth-Century Music from the Papal Chapel, The Earliest Motets, and Early English Church Music. The green volumes on the left bear the initials "DTO," which stands for Denkmäler der Tonkunst in Österreich, which can be translated as "Monuments of Music in Austria." Note that the call numbers all start with M2.
Here are some examples of the collected works of composers. The set that begins in the beginning of the picture has the text Neue Bach-Ausgabe on the spine. The proper title is Neue Ausgabe sämtlicher Werke, or "New Edition of the Complete Works," by Johann Sebastian Bach. Note that the call numbers here start with M3.
Here is where keyboard music scores begin in the circulating stacks. Keyboard solo music is found with call numbers ranging from M6-M39. Organ music can be found at M6-14. Harmonium (Reed organ) music can be found from M15-19. Piano music (two or fewer hands) can be found at M20-39. Of note, Collections of Piano Music can be found at M21-22, Piano Sonatas can be found at M23, Piano Suites can be found at M24. Original pieces of other forms or genres for piano can be found at M25-32. Music arranged for piano can be found from M32.8-39.
Keyboard concertos and other works for piano and orchestra, including versions with the orchestral accompaniment reduced for a second piano, can be found with orchestral music. Organ with orchestra can be found at M1005, organ with orchestra with the accompaniment reduced for piano can be found at M1006. Similarly, piano with orchestra can be found at M1010, and piano with orchestra with the accompaniment reduced for piano can be found at M1011.