Drummer's Polymetric Mastery Releases Softcover Book With Online Video Demonstrations

Hudson Music has released Drummer’s Polymetric Mastery, a softcover by educator and drummer Jason Gianni that pairs with online audio and video demonstrations and is listed at $26.99. Drumming News Network carried the publisher announcement on February 21, 2026, and Hal Leonard mirrored the listing with retail UI copy and a copyright timestamp of Mon Feb 23 16:16:33 CST 2026.

"Jason Gianni presents an in-depth study of independence aimed at uncovering a pathway to executing polymeters, over-the-bar phrases and cross-rhythms for the drum set," reads the publisher copy that frames the book’s curriculum. The book is described as "Based primarily around groove-building exercises in 4/4," and the listing says Gianni's method "exposes a systematic process to develop the various subdivisions and odd-numbered grouping coordination required in understanding the language of polymetric drumming."

Product pages on Hudson Music and Hal Leonard spell out the technical focus: polymeters, over-the-bar phrases, cross-rhythmic grooves, independence work, groove-building in 4/4, odd-numbered grouping coordination, and assorted rhythmic exercises for bass drum and snare drum. Publisher copy also notes the material is presented through "standard groove options and assorted rhythmic exercises for bass drum & snare drum, combined with accented ostinato hand patterns to assemble technically demanding yet innovative contemporary patterns."

Retail details show immediate demand: Hal Leonard’s page carries a back-order notice that reads "Due to high demand, Drummer's Polymetric Mastery is on back order" and adds the retailer UI instruction "Purchase Now and we will ship this item when it is available." The Hal Leonard capture includes on-site text such as "Drummer's Polymetric Mastery has been added to your cart" and a suggestion for European buyers: "For fast, easy shipping in the EU, please visit SheetMusicPlus.com."

Jason Gianni’s author bio is listed alongside the product. Hal Leonard and Hudson Music identify Gianni as an instructor at the Drummers Collective in New York City who holds a Master of Music degree from Pennsylvania State University. The listings note he has worked as a session drummer for television and radio commercials, is "most known for being the drummer for the theme song for the popular cartoon SpongeBob SquarePants," co-authored The Drummers Bible, and appears as the featured drummer on Hudson Music’s 2008 DVD Set Up, Tune and Play Your Drums.

Hudson Music’s product page also contains a truncated endorsement fragment attributed to Thomas Lang in the captured copy ("-Thomas Lang"), and an Instagram post from the publisher’s promotion feed reads in part "NEW RELEASE! AVAILABLE NOW AT HUDSON MUSIC! Drummer's Polymetric Mastery By Jason Gianni" though the Instagram capture contains no date. Publisher and retailer listings describe the book’s online audio and video demonstrations but do not specify access method, number or duration of video lessons, ISBN, or other product identifiers; retailers advise checking publisher pages for shipping and availability updates.