Bailey Instrumental
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  • Dexter Forbes
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  • Since 2014
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  • Build Philosophy
  • Design Philosophy
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Bailey Instrumental
Home
Instruments
  • Signature
  • Echo
  • Plunk Bass
  • Bass VI / VII
Series
  • Foundation Series
  • Refraction Series
  • Concision Series
  • Plunk Bass
  • Bass VI / VII
Contriver Artists
  • Dexter Forbes
  • Adam Tobias
  • Rhys Georgiou Jonassen
About
  • Since 2014
  • F.A.Q
  • Contact
Philosophy
  • Build Philosophy
  • Design Philosophy
  • Build Process
More
  • Home
  • Instruments
    • Signature
    • Echo
    • Plunk Bass
    • Bass VI / VII
  • Series
    • Foundation Series
    • Refraction Series
    • Concision Series
    • Plunk Bass
    • Bass VI / VII
  • Contriver Artists
    • Dexter Forbes
    • Adam Tobias
    • Rhys Georgiou Jonassen
  • About
    • Since 2014
    • F.A.Q
    • Contact
  • Philosophy
    • Build Philosophy
    • Design Philosophy
    • Build Process
  • Home
  • Instruments
    • Signature
    • Echo
    • Plunk Bass
    • Bass VI / VII
  • Series
    • Foundation Series
    • Refraction Series
    • Concision Series
    • Plunk Bass
    • Bass VI / VII
  • Contriver Artists
    • Dexter Forbes
    • Adam Tobias
    • Rhys Georgiou Jonassen
  • About
    • Since 2014
    • F.A.Q
    • Contact
  • Philosophy
    • Build Philosophy
    • Design Philosophy
    • Build Process
a precise redirection of tension and energy for focused feel

Refraction Series

The Refraction Series builds on our Foundation by introducing angled headstock geometry and expanded material options. 


This series removes preset limitations while maintaining Contriver’s core design principles.


Each instrument is built from the ground up — not selected from a menu.

Inquire

Guided by Behavior

The Refraction Series is our core lineup, built with a single 9.4° fixed nut break angle integrated via a hidden scarf joint beneath the headstock overlay. This design allows full, uninterrupted vibration transfer along the neck.


Refraction instruments deliver a slightly firmer feel on the low strings and looser on the highs compared to the Foundation Series, giving perceived tension a more dynamic distribution. 


  • Treble strings are expressive, yet compliant
  • Bass strings feel firm, controlled, and articulate


This makes Refraction Series ideal for alternate tunings, extended ranges, and multiscale layouts,


Available In 

6 or 7 String

Set Neck or Bolt on


Available Body Shapes 

Signature or Echo 

Body Woods

Materials are selected for how they interact as a system, not for species alone. Pairings are guided by mass, stiffness, compliance, and damping to maintain predictable behavior.


Neutral / Balanced Core

Even response, broad compatibility across scale lengths and neck constructions.


Northern Ash

Alder
 

Use when: you want predictability, consistency, and an even mechanical response.


Firm / Defined

Increased stiffness and clarity with a more immediate attack.


Roasted Ash

Swamp Ash
 

Use when: longer scales, lower tunings, or players who prefer a tighter feel.


Warm / Damped

Slightly increased damping with a smoother attack and relaxed mids.


African Mahogany

Walnut

Black Limba
 

Use when: aiming for a more forgiving response or counterbalancing stiffer necks and fretboards.


Structured / Composite

Three piece constructions tuned for stiffness distribution and visual contrast.


Ash Core + Black Limba Wings


Use when: additional control over response is needed without increasing overall mass.

Top Woods

Top woods primarily affect surface response and feel while contributing visual character. Core body woods remain the primary driver of the instrument’s foundation.


Neutral / Reinforcing 

Minimal damping, reinforces the body’s natural response.


Northern Ash

Roasted Ash

Flame Maple

Roasted Flame Maple

Quilted Maple


Warm / Softening

Adds subtle damping and a smoother initial attack.


Black Walnut

Flame Claro Walnut

Koa

Redwood Burl


Dense / Reflective

Increases surface firmness and note definition.


Macassar Ebony


Visual / Character Tops

Primarily aesthetic, with response tuned through the core body wood and neck system.


Spalted Maple

Maple Burl

Poplar Burl
 

These tops are selected for visual impact and are paired with body woods that maintain structural and tonal balance beneath the surface.


Carved Top - Included

Bent Top - Additional Upcharge

Neck Woods

Neck wood selection plays a major role in stability, stiffness distribution, and tactile response.  Wood choice is used to fine-tune feel rather than alter the platform.


Neutral / Reference

Even stiffness with predictable response across scale lengths.


One piece Qtr Sawn Maple

Three Piece Qtr Sawn Maple
 

Use when: a balanced, familiar feel is the goal.


Firm / Controlled

Increased stiffness and focus, especially beneficial for longer scales and extended-range instruments.


One Piece Roasted Maple

Three Piece Roasted Maple

Five Piece Maple+Roasted Maple

Five Piece Roasted Maple+White Maple
 

Use when: prioritizing clarity, stability, and low-string control.


Warm / Compliant

Slightly increased damping with a smoother, more forgiving feel.


One Piece Sapele

3 Piece Sapele+Maple

3 Piece Maple+Sapele
 

Use when: counterbalancing dense fretboards or firmer body cores.


Dense / Rigid

High stiffness with pronounced definition and a more immediate response.


Five Piece Maple+Wenge

Five Piece Wenge+Maple
 

Use when: maximum control and articulation are required, particularly for aggressive playing styles.


Bolt On - Included

Set-Neck - Additional Upcharge

FRETBOARDS

Fretboard materials influence attack, tactile feel, and high-frequency response. Selection is guided to complement the neck and body system.


Immediate Attack / Defined

Fast attack with clear note separation and minimal damping.


East Indian Ebony

Gabon Ebony

Macassar Ebony

Use when: clarity, articulation, and precise response are the priority.


Balanced / Neutral

Even response with controlled attack and broad compatibility.


Figured Chechen

East Indian Rosewood

Ziricote 

Use when: maintaining consistency across the system without emphasizing extremes.


Warm / Forgiving

Softer attack with increased damping and a smoother feel under the fingers.


Bocote

Pale Moon Ebony 

Use when: counterbalancing stiffer neck constructions or longer scale lengths.


Bright / Elastic

Snappier feel with a slightly more elastic response.


Quarter-Sawn Flame Maple

Flat-Sawn Blistered Maple

Use when: adding immediacy and tactile feedback without excessive stiffness.


Scalloped Frets - Additional Upcharge

Multi Scale Scallop - Additional Upcharge

Scale lengths

Scale length is one of the most influential choices in how an instrument feels. Recommendations are made based on tuning, string count, and playing style.


Single Scale options:

  • 25.75″ — Familiar feel with relaxed response
  • 26.375″ — Balanced tension and controlled elasticity
  • 27.00″ — Increased clarity and low-string control
     

Multi-Scale options: 

6 String 

 27.00" - 25.75"


7 String  

27.00" - 25.75"

 27.25" - 25.75"

Inlay

Inlays are optional and are designed to complement playability and aesthetics without disrupting energy flow.


Face Dots - Included

  • Inline (Bass Side) Offset Centred 
  • Inline (Bass Side) Offset Staggered 
  • Inline (Bass Side 1-12 Treble Side 15-24) Offset Centred
  • Inline (Bass Side 1-12 Treble Side 15-24) Offset Staggered
  • Centred
  • Astral / Reverse Astral 


Blocks - Additional Upcharge

  • Centred
  • Inline (Bass Side) Offset Centred
  • Inline (Bass Side 1-12 Treble Side 15-24) Offset Centred


Custom Inlay - Additional Upcharge

Modelled from your provided image and cut deep into the fretboard, these can be filled with dyed resin or wood.


Glow in the Dark - Additional Upcharge

Additional Color / Overlay  - Additional Upcharge

FINISHES

Natural Oil Finish — Included


  • Non-film building hardwax oil, amber-toned
  • Close-to-the-wood feel
  • Further protected with a hydrophobic ceramic coating
     

High Gloss or Satin Spray Finish - Additional Upcharge


  • High-film building, UV-cured polyurethane
  • Ideal for tops with striking grain (Flame Maple, Poplar Burl)
  • Can be dyed to vivid colors or tinted to highlight wood figure
  • Solid colors applied via primer + paint, then crystal clear finish


 Finish choice is evaluated alongside body, top, and neck materials to ensure the instrument’s response, resonance, and aesthetic remain balanced. Exotic or visually complex finishes are guided to maintain structural integrity and tonal consistency.

Hardware

Fixed Bridges 


  • Hipshot Hardtail — reliable, stable, and straightforward
  • ABM Single Bridges — precision-machined, smooth sustain


Tremolo Systems 


  • Hipshot Trem — stable, smooth, designed for controlled expression
  • Sophia Tremolos — responsive, refined, with minimal setup requirements


Bridge and tremolo selection is guided by scale length, string count, and neck construction to ensure optimal feel, sustain, and tuning stability.

ELECTRONICS

Standard Configuration

  • House Pickups (6 String Only)
  • 3-Way Toggle Switch
  • Volume & Tone Controls


Optional Upgrades

  • Alternate pickup models (available upon request)
  • Coil-splitting, phase switching, or passive/active modifications (evaluated for compatibility with scale and string tension)
     

Choices are reviewed to ensure they complement your material selections, scale length, and desired response, preserving consistency and playability.

The Build Process

Refraction Series instruments are built to order within the options outlined above.


Next Steps:

  • Discuss player goals and desired feel
  • Select woods, scale length, neck/fretboard, hardware, and electronics
  • Review pairings and ensure predictable energy flow
  • Construction with multi-stage verification
  • Final setup and quality check

Pricing and Availability

Refraction Series instruments are built to order. 


Pricing is discussed during consultation based on materials, construction complexity, and specifications.

ORDER FORM

Please Download, Fill out, and Email to Brett@ContriverGuitars.com

Download PDF

BOOK A CONSULTATION WITH BRETT BAILEY

Let's Talk Guitars!

Professional Buyers Consultation service providing expert guidance and advice to assist you in making informed decisions when selecting one of our instruments.


In-depth discussions will cover the fundamental mathematics underlying fretboard geometry and neck profile, along with considerations regarding wood selection, finish, and electronics.


Throughout our session, we'll examine 3D models, and detailed sketches of your instrument to ensure it meets your preferences and requirements.

BOOK NOW!

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