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Kepma is dedicated to crafting guitars with outstanding sound and dependable workmanship.
Through precision manufacturing and continuous improvement, we help more people enjoy music.
We create instruments that are more reliable, easier to play, and richer in sound.
We continually create lasting value for our customers, employees, and society.

The Aroma of Wood: Exploring the Scent of Guitars

Acoustics & Craftsmanship2026-04-30

Wood, glue, finishes and storage all affect guitar smells. Explore cedar species and volatile compounds, and learn why scent cannot establish tone.

A Preliminary Acoustic Model of the Guitar

Acoustics & Craftsmanship2026-07-30

Understand how strings, bridge, soundboard and air interact in an acoustic guitar. Explore energy transfer, radiation and the limits of simplified models.

Exploring “Unusual” Guitar Top Appearances: Yin-Yang Effect, Color Variation and Mineral Streaks

Acoustics & Craftsmanship2026-08-30

Explore soundboard runout, colour variation, silking, mineral lines and bearclaw. Separate appearance from evidence about guitar structure and tone.

Fundamentals of Guitar Modal Concepts

Acoustics & Craftsmanship2026-04-30

Explore modal guitar analysis: natural frequencies, mode shapes, damping and coupling. Check equation assumptions and an illustration of nodes and antinodes.

Exploring Bearclaw

Acoustics & Craftsmanship2026-05-30

Learn what bearclaw spruce reveals about appearance and material structure. Distinguish specimen tests from guitar tone, and compare condition, playability and price.

An Analysis of the Science and Practice of Adhesives in Guitar Making

Acoustics & Craftsmanship2026-03-30

Compare guitar adhesives by joint fit, load, cure and repairability. Learn about hide glue, wood glues, CA, epoxy and water-resistance limits.

Acoustic Guitar Wood Selection: Empiricism and Engineering Capability

Acoustics & Craftsmanship2026-03-30

Choose guitar woods by density, directional stiffness, loss and moisture. Understand impedance, radiation-ratio limits and equilibrium moisture estimates.