The 2007 Michael Greenfield G4 brings a remarkable sense of possibility to the steel string guitar. Generous in proportion and graceful in detail, it reflects a builder’s fascination with everything an acoustic instrument can become: powerful, articulate, harmonically expressive, and deeply personal. With its Sitka spruce soundboard, koa back and sides, and beautifully considered appointments, this G4 offers an inviting expression of Greenfield’s distinctive musical vision. Though used, it remains in excellent condition.

Working from Montréal, Michael Greenfield has earned his place among the most respected and sought after builders in contemporary acoustic lutherie. His experience reaches back to the 1970s, when performing professionally led him into guitar setup and repair. By the 1990s, his work included restoring vintage and antique instruments, an invaluable education in the construction, sound, and aging of exceptional guitars. Studying guitar making with Bryan Galloup helped turn that accumulated knowledge toward building, and in 2000 he closed the repair side of his business to concentrate on his own instruments. His approach carries the perspective of a musician, the practical understanding of a restorer, and the curiosity of a craftsman continually exploring the relationship between structure and sound.

The G4 grew from a clear musical purpose. Greenfield’s early literature describes a substantial instrument conceived for the expanding vocabulary of contemporary players, particularly fingerstylists exploring percussive techniques, pronounced harmonics, and deeply lowered tunings. Its generous body and 26 inch scale were paired with his hybrid lattice bracing to pursue power with exceptional definition. That original design brief gives the G4 its compelling identity: an instrument intended to accommodate an expansive arrangement while preserving the individuality of its bass lines, inner voices, and melody.

Here, Sitka spruce and koa provide a beautiful foundation for that ambition. The pairing brings together the versatility associated with Sitka and the warmth and character that make koa so captivating. Beneath the soundboard, hybrid lattice bracing reflects Greenfield’s deliberate approach to shaping the instrument’s response. The radially braced back represents his construction from the period before the introduction of the Tone Halo, making this 2007 example a fascinating expression of his evolving work. These details reveal how thoroughly the guitar’s musical purpose informs its construction, extending well beyond what is visible from the outside.

Its decorative vocabulary is equally thoughtful. A buckeye burl and paua abalone rosette places organic texture beside luminous color, creating a striking focal point within the spruce soundboard. Ebony bindings frame the body, accompanied by maple, black, and purple purflings that lend the design a subtle and distinctive richness. An ebony bridge and fingerboard carry that dark visual continuity through the instrument, while the headstock pairs an ebony front veneer with a rosewood rear veneer. A mother of pearl logo completes the face, and gold Gotoh 510 tuning machines with black buttons provide an elegant finishing touch.

Every element of the playing experience receives the same attention. The ebony arm rest softens the body’s contact with the picking arm, while the upper bout sound port offers the player a more direct connection to the instrument’s voice. A flowing Venetian cutaway opens access to the upper register, complementing the 14 fret neck joint. The Honduran mahogany neck combines a 1 3/4 inch nut width with 2 1/4 inch bridge spacing, providing welcoming room for independent finger movement and intricate right hand work. The 26 inch scale further reflects the G4’s affinity for alternate tunings, offering useful additional tension as the music ventures lower.

Weighing 5 pounds 4 ounces and accompanied by a custom Calton flight case, this beautifully preserved Greenfield brings together ambitious acoustic design and the intimacy of an individually crafted instrument. Its appeal lies in the coherence of the whole: the sweep of the body, the carefully chosen materials, the thoughtful ergonomics, and the musical intention running through every detail. It is a guitar that invites a player to linger, explore unfamiliar voicings, and discover where the next phrase might lead.