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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. Short Slot Golden Melody combs
    7 years 7 months ago
  2. Custom comb for Steve Baker Special
    7 years 7 months ago
  3. To Tap or to Self-Tap?
    7 years 7 months ago
  4. Video: Answer to the most common customizing question
    7 years 7 months ago
  5. Hohner Vest Pocket Harp
    7 years 8 months ago
  6. Tuning offsets
    7 years 10 months ago
  7. Altering Standard Richter to Powerbender
    7 years 10 months ago
  8. 7-Limit Just Intonation
    8 years 1 month ago
  9. My tools are made to order
    8 years 1 month ago
  10. Dark Combs™ for Lucky 13 combs
    8 years 1 month ago
  11. Short slot combs
    8 years 3 months ago
  12. Country tuning
    8 years 3 months ago
  13. Dark Combs™ for Easttop Blues harmonica
    8 years 4 months ago
  14. Lucky seven
    8 years 6 months ago
  15. Harmonica repair mistakes #9 - bent reed
    8 years 7 months ago
  16. Lot of seven combs
    8 years 8 months ago
  17. Marine Band 1896 conversion kit (Five sets)
    8 years 9 months ago
  18. (Checklist) Basic embossing
    8 years 10 months ago
  19. (video) Harmonica repair mistakes #8 - Temperament Tantrum
    8 years 10 months ago
  20. (video) Harmonica repair mistakes #7 - When do you stop?
    8 years 11 months ago
  21. (video) Harmonica repair mistakes #6 - Wrong reed, wrong direction!
    8 years 11 months ago
  22. (video) Harmonica repair mistakes! #5 - Heavy handed
    9 years ago
  23. (video) Correcting imperfections in just TWO TINES using the Comb Tool™
    9 years ago
  24. Embossing tool improvement
    9 years ago
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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