I finished reading five books and a heap of graphic novels in May.
The music-related books were: Electri_City: The Düsseldorf School of Electronic Music, an oral history of the 1970s through the mid-80s by Rüdiger Esch. I read it as an ebook, so I'm not sure how big it is (the online descriptions put it at about 450 pages), but it seems very long, not in a bad way, but prepare for a very long read. Also: Reasons for Knocking at an Empty House: Writings 1973-1994, by Bill Viola; and Dreaming the Beatles: The Love Story of One Band and the Whole World by Robert Sheffield. I also read the first two novellas in The Expanse series: Gods of Risk and The Churn.
In graphic novels I read Battling Boy by Paul Pope, Lucille by Ludovic Debeurme, Sandcastle by Pierre Oscar Lévy, IDP:2043 (a group effort overseen by Denis Mina, with Hannah Berry and Irvine Welsh among others contributing), Luke Healy's How to Survive in the North, Hannah Berry's Adamtine, Leela Corman's Unterzakhn, first and second volumes of Tom King's run on Batman (Batman Volume 1: I Am Gotham, art mostly by David Finch; Batman Volume 2: I Am Suicide, art by Mikel Janin), Batman: Night of the Monster Men (multiple authors and illustrators), The Punisher Volume 1: On the Road by Becky Cloonan and the late Steve Dillon, the second/final volume of Tom King's The Vision (art by Gabriel Hernandez Walta), Grant Morrison's Nameless (art by Chris Burnham), Jonathan Hickman's Secret: Never Get Caught (art by Ryan Bodenheim), Ed Brubaker's Kill or Be Killed Vol. 1 (art by Elizabeth Breitweiser and Sean Phillips), and volume 2 of Brandon Graham's Prophet series (Prophet Volume 2: Brothers).