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Custom Harmonicas by Andrew Zajac
The most expressive harmonicas

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Andrew's Harmonicas

Custom Harmonicas:
I customize diatonic harmonicas to connect deeply with the player. Each instrument is remarkably responsive, has amazing tone and tuning, and is adjusted to your playing style.
My harmonicas are loud. They've got fat tone. They allow effortless bending of notes.
Custom harmonica information page.
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Custom Harmonica Combs:
Darken your harmonica with one of my combs. My Dark combs™ are measurably better than factory-made combs. They are made from environmentally-responsible materials. They are beautiful, durable, airtight, waterproof and comfortable to play.
Dark combs page
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Harmonica tools and customization instruction:
Getting your harmonica to perform best is meticulous work. I offer a complete set of innovative tools. I offer learning products that help you tackle the learning curve of upgrading and customizing your harmonica.
After years of work, I'm still excited about the process! I'm learning new things all the time. I update my tools and learning materials continuously.
Tools page

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Hand Made

My custom harmonicas, combs and tools are made to order.
Production times are 16 business days or less for combs and tools.
Current production time for custom harmonicas are shown on the top of the custom page.
Thanks for your support.
Andrew

Selected blog posts

  1. Lee Oskar
    11 years 3 months ago
  2. Full Toolkit (The most complete toolkit available)
    11 years 3 months ago
  3. Custom harmonica ($100 deposit)
    11 years 3 months ago
  4. Marine Band
    11 years 3 months ago
  5. Special 20/ Rocket
    11 years 3 months ago
  6. Hohner MS series
    11 years 3 months ago
  7. Other models including Marine Band 364, 365, pre-MS Meisterklasse, Seydel Big Six, Easttop 008
    11 years 3 months ago
  8. Suzuki
    11 years 3 months ago
  9. Seydel 1847
    11 years 3 months ago
  10. Golden Melody
    11 years 3 months ago
  11. Is my vintage Marine Band a lemon? How to spot a bad Marine Band harmonica
    11 years 3 months ago
  12. Holes 9 and 10 on a Lee Oskar
    11 years 6 months ago
  13. Making a Lee Oskar harmonica play overblows
    11 years 6 months ago
  14. Bending an overblow 6 semitones
    11 years 6 months ago
  15. Why replace a harmonica comb?
    11 years 8 months ago
  16. The French Tuner™
    11 years 8 months ago
  17. The middle octave, positions and pentatonic scales on the diatonic harmonica
    12 years ago
  18. Tuning check
    12 years 2 months ago
  19. Harmonica compromise tunings
    12 years 2 months ago
  20. Tune a harmonica using your ears and a simple chromatic tuner
    12 years 2 months ago
  21. Beginner asks "what harmonica should I buy?"
    12 years 3 months ago
  22. Cossover tuning
    12 years 3 months ago
Pagination
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Custom diatonic harmonicas, Hohner Affiliated Customizer.
I customize Hohner Marine Band, Rocket, Special 20, and Golden Melody harmonicas.
Andrew Zajac, Kingston Ontario, Canada.
I use a continuous quality improvement process. I use regular evaluation and incremental steps to strive for constant improvement.
Website, text, photos, videos, download documents, designs and products by Andrew Zajac are licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
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Copyright © 2025 Andrew Zajac - All rights reserved