The Astatic JT-30 microphone is the perfect Harmonica mic for use with a vintage tube amps. It was created about 70 years ago and went out of production around the year 1999. These pages are devoted to enjoying, playing and learning Amplified Blues Harmonica, so the name JT30 is appropriate. Today there are many cool harp microphones. In the long run, it’s not the mic that counts, it’s what’s in your heart!

Street Theory

A Harp Player’s Guide to Music Theory

Learning Harp


Picking Up Blues Harp

A guide to learning to play Blues Harp


Microphone Information


More JT30 Stuff


History of this page.

In the dawn of the World Wide Web (1994), harp player Keith Graham created the JT30 page. It started out as a home page for modifying JT30 microphones. Eventually the page became a catchall for microphones and amplified harmonica playing. You can see these pages at:
The Original JT30 Page
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A Blues Harp Player’s Guide to Tube Amplifiers

Usenet Articles

For many years a kept a Blues Harp blog. There are lots of pictures and stories here:Keith's Blues Harp Blog

 

Buy the Book!

I cleaned up my tab for Sonny Boy's Help Me and made it into a short book. There's a Kindle version for 99 cents, and if you buy the paperback you get the Kindle free.

Playing "Help-Me" In the Style of Sonny Boy Williamson II: A step by step, note for note analysis of some of Sonny Boy's Signature Riffs

I also write Science Fiction, so you can sample some of my best stories. Also available in Kindle format.


Error Message Eyes: A Programmer's Guide to the Digital Soul
 

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The JT30 Page Popular links

I began collecting data about the microphones used by blue harp players before there was an internet. I began organizing it into JT30.com in the late 1990s. I accumulated more stuff than I remember. This is some of it.

Street Theory

A Harp Player’s Guide to Music Theory

Learning Harp

Picking Up Blues Harp

A guide to learning to play Blues Harp

Microphone Information

Usenet Articles


Harp Amps

I've been collecting Harp Amps for a while. This is the old Harpamps.com website. There is lots of information here. Here a coupld of links.


Harp Tab

A collection of songs and riffs that I’ve worked out over the years, plus some libraries of stuff I’ve converted to tablature. I’ve included most of the notes and instructions that helped me when I was learning to play blues harmonica.

Basic Riffs Simple harp tabs for songs Blues riffs and phrases.

Harp-L Archives 1992 to 2002


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1993
1994
1995
1996
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1999
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2001
2002
2003

Harp Frequently Asked Questions