Handbuilt in Augsburg, Germany by master luthier Stefan Sonntag, this rare custom 7-string classical/nylon represents a unique departure from his usual body of work. Sonntag is internationally respected for his hand-carved archtops the kind of guitars favored by demanding jazz players looking for tonal detail, responsiveness & flawless craftsmanship. His archtops regularly sit alongside instruments from builders like Monteleone, Unger, or Buscarino, and are sought after in European boutique circles.
Because Sonntag is known almost exclusively for archtops and jazz-oriented 7-strings, this nylon-string 7-string classical was commissioned as a custom build, not a catalog model. It showcases the same hand-selected tonewoods, meticulous bracing, and fully hand-crafted construction he is known for just applied to a far more traditional, acoustic-focused instrument. The result is an extended-range classical guitar with deep bass response, articulation & sustain that feels like a concert instrument rather than a novelty design.
Specs
Custom-built 7-string classical / nylon
Solid spruce top (tight grain, responsive voice)
Solid rosewood back & sides
Ebony fingerboard & bridge
Hand-cut rosette & bindings
Built entirely by hand in Augsburg, Germany (no factory parts)
Sonntag rarely builds classical guitars—and even more rarely extended-range instruments outside his archtop lineup. There are very few, if any, comparable examples on the market, making this a boutique collector-level piece. If you’re seeking a handmade European 7-string nylon that isn’t a factory guitar or student instrument, this is a serious opportunity.
Warm, balanced & highly responsive, the instrument handles everything from modern classical voicings to Brazilian 7-string and extended jazz harmony. The low string is piano-like without boominess—exactly what you’d want from a handcrafted boutique build.
Handbuilt in Augsburg, Germany by master luthier Stefan Sonntag, this rare custom 7-string classical/nylon represents a unique departure from his usual body of work. Sonntag is internationally respected for his hand-carved archtops the kind of guitars favored by demanding jazz players looking for tonal detail, responsiveness & flawless craftsmanship. His archtops regularly sit alongside instruments from builders like Monteleone, Unger, or Buscarino, and are sought after in European boutique circles.
Because Sonntag is known almost exclusively for archtops and jazz-oriented 7-strings, this nylon-string 7-string classical was commissioned as a custom build, not a catalog model. It showcases the same hand-selected tonewoods, meticulous bracing, and fully hand-crafted construction he is known for just applied to a far more traditional, acoustic-focused instrument. The result is an extended-range classical guitar with deep bass response, articulation & sustain that feels like a concert instrument rather than a novelty design.
Specs
Custom-built 7-string classical / nylon
Solid spruce top (tight grain, responsive voice)
Solid rosewood back & sides
Ebony fingerboard & bridge
Hand-cut rosette & bindings
Built entirely by hand in Augsburg, Germany (no factory parts)
Sonntag rarely builds classical guitars—and even more rarely extended-range instruments outside his archtop lineup. There are very few, if any, comparable examples on the market, making this a boutique collector-level piece. If you’re seeking a handmade European 7-string nylon that isn’t a factory guitar or student instrument, this is a serious opportunity.
Warm, balanced & highly responsive, the instrument handles everything from modern classical voicings to Brazilian 7-string and extended jazz harmony. The low string is piano-like without boominess—exactly what you’d want from a handcrafted boutique build.
