Custom Harmonicas & Personal Service


The Annoying Reed Squeal On Overblows/Draws

As overblow/draw (OB/OD) playing becomes more popular, complaints are increasing about the annoying reed squeal noise that can ruin a blue 3rd or jazz lick and send our audience to the ENT. Reed squeal seems to becoming more prevalent but this is most likely the result of more players becoming proficient in OB/OD and the quality of manufactured harps which permit players to venture into the technique. The video below is a demonstration of OB/OD on a stock Seydel 1847 with noticeable reed squeal. I treat the reeds with a small amount of nail polish and play the same notes later in the video. The nail polish certainly reduced the reed noise. The cause of reed squeal is up for debate but I think it amounts to high pressure air passing through the base of the isolated reed and causing a whistle. This theory is flawed in some respects, but it is the best I have right now. Nail polish is just one solution but I seem to be having success with it and at 16:23 we are all about finding the best and most efficient solution to this nuisance. Watch the vid and see what you think. If OB/OD playing is your goal, we would like to help you reach that. I believe that the stock Seydel will OB/OD with little modification but that it is possible the Seydel diatonic would benefit from treatment to reduce reed squeal.

The Stock Seydel and Overblows/Overdraws

If you get on any harmonica related forum you are sure to read discussion on overblows and harmonica customization. Considerable time is devoted to how expert technicians adjust and modify harmonicas to enable harmonica players to achieve chromatic play. It is important to note that  many of the greatest players do not use overblows in performance.  However, the technique is becoming more popular. At the same time, harmonica manufacturers are constantly improving and the quality of the stock harmonica is at its highest. We believe stock Seydel harmonicas are among the best and many of them can be played chromatically straight out of the box. The skills involved in making micro adjustments to harmonicas for optimal play are still needed, but not to the extent they were necessary years ago when manufactured harmonicas were not as responsive. The video below is a demonstration of the playing capabilities of stock Seydel 1847s in relation to overblows and overdraws.  At 16:23 Custom Harmonicas, we encourage players to buy and play Seydel harmonicas stock before investing in customization services. See for yourself what these harps can do straight out of the box.

Seydel High A & G Stainless – A Workable Solution

Play in any acoustic setting and you no doubt have the issue of being heard above the guitars when playing 2nd position (Cross) in (D) or (E).  We’ve all been there and noticed that the harp is playing at exactly  the same range as the other instruments and hearing yourself play is next to impossible and forget others hearing you.  This has been one of the reasons harmonica companies occasionally produce High A and High G harmonicas.  Seydel still has both in production although only in brass reed models.  The reason for this is that a given reed length can only be made to produce a finite number of pitches.   The pitch range of a reed is significantly smaller on stainless steel and hence, the higher octave harps are not produced in stainless.  There is a very workable solution to this using  what is called a “shift”.  Shift tuning merely moves the notes over to the right or left 1 hole into the usable pitch range.  For example, a typical diatonic (G) harp is laid out as follows.

G  B  D  G  B  D  G  B  D  G     BLOW

A  D  F# A   C  E  F#  A C  E   DRAW

These pitch ranges are not available in stainless steel an octave higher.

However, we can shift all the notes over 1 hole and get into the workable range.   Of course, the layout is slightly different, but it still follows the same basic pattern. You lose the notes on the 10 hole, but at that octave those would be too piercing, anyhow.  The other advantage is the additional notes added on hole 1 fit perfectly for 2nd position play.  Under this tuning scheme, the player gets a full 3 octaves of 2nd position.

The shifted layout would be as follows:

D  G  B  D  G  B  D  G  B  D    BLOW

F# A  D  F#  A C E  F# A C   DRAW

Listen to a sound sample of a little informal jam using a HIGH A 1847 that has been shift tuned.

Shift Tuned HIGH A Seydel 1847

This is a great option for those needing a higher octave harp in bluegrass, country, and other acoustic type settings.  It takes only a few minutes to figure out the layout.  I can build this type of harp in the 1847 for about $110.  Contact me for more details at See below for a video demonstration.


The Crucial Major 7th

The major 7th is an important note in modern music. If you sing or hum any recognizable melody, you will undoubtedly pass the major 7th which is the last note in the major scale.  It is 1/2 step below the root note.

When we play a harmonica that is in the key of (C) and we are playing in cross harp/2nd position, the 7th note of the scale would fall on the 5 draw.  This note on a (C) harp is an F, but in 2nd position key of (G), we need that note to be an F#.  Harmonica players for years have struggled with this situation.  Although the note is not absolutely necessary in many blues progressions, it is crucial in jazz, country, popular music, and bluegrass.  We can find this note on hole 2 draw bent 1/2 step and can also get the pitch on the upper end on hole 9 and a 1/2 step blow bend.  However, most want to be able to get the note in the middle octave, as well.  

The use of an over blow on hole 5 will get us the major 7th.  The 5 over blow can be a difficult note to hit, especially on a fast passage. So some players have opted for country tuning which raises the pitch of the 5 draw reed 1/2 step.  The half-valved harmonica is another option and allows the player to hit the major 7th pitch as a blow bend on hole 6.  Watch the video below for a demonstration of these options.  At 16:23 Custom Harmonicas, we enjoy working with players to help them become the best they can be. Sometimes this involves working through their musical challenges.  Contact me if I can help you.  I sell all Seydel diatonic and chromatic harmonicas and am able to modify your Seydel harmonicas for your playing preference.


Love Me Do Harp

If you are over 40 and play harmonica, there is a good chance you were inspired to play after hearing the Beatles sing that wonderful song “Love Me Do”. The harmonica part is unmistakeable whether played with the song or while on the front porch. John Lennon played a chromatic on the song. It is probably the best instrument to use when covering Love Me Do. However, many tribute bands and groups like to play the song and don’t have a dedicated player for the harmonica part. This means one of the members has to either abandon his primary instrument or play it on a harp rack. Featured here is a specialty tuned diatonic harmonica that has all the notes in the lead and solo part to play “Love Me Do” without the need for bends. The tuning is as follows:


Listen for yourself. At 16:23, we can build this harp for you. We suggest the Seydel Session Steel with 1847 covers. Email me for more details:

PowerDraw Tuning

I am a big proponent of alternate tuning options for the the diatonic harp. Alternate tunings help re-wire our brain away from the musical rut we sometimes find ourselves. The PowerDraw tuning is a great option for players wanting to step out into a fun tuning that offers a lot of interesting musical concepts, especially for those who like to jam. PowerDraw tuning was originally developed by Brendon Power who is not only an outstanding player in many genre but a great player on multiple tuning schemes.

The PowerDraw tuning is unique in that it maintains a consistent blow/draw pattern across all 10 holes of the harp. This allows for expressive draw bends on holes 7-10. It also brings the 2nd position blues scale into reach without overblows or overdraws.

The PowerDraw tuning on a (C) harp is as follows:

Blow — C E G C E G A C E A
Draw — D G B D F A B D G C

In that the PowerDraw tuning allows for some great upper register playing, it might be considered more appropriate in the keys between LOW D and Bb. However, it works well here the below video which demonstrates playing in the key of G on a (C) harp. The PowerDraw tuning works even better on a half-valved harp where the player can get some very nice blow bends for added expression.

At 16:23 Custom Harmonicas, we offer the PowerDraw tuning in the Seydel Session Steel and the 1847. As usual, we offer multiple comb and cover combinations as well as half-valving and adjustments to tuning, temperament, and frequency basis (440 v. 442). Email us at for more information.

Check out the PowerDraw video demonstration below where I noodle around to a simple blues backing track and demonstrate the upper octave blues scale on both a PowerDraw and standard diatonic.

Seydel Sales and Repair


Welcome to 16:23 Custom Harmonicas.  I am a full-service Seydel dealer and offer all Seydel products.  My specialty is individualized and personal service with a goal of getting you the player into the right Seydel harmonica.  My customers  appreciate the individual attention and responsiveness I provide and that is my specialty.  If you have questions and are considering a Seydel purchase feel free to contact me.  My prices are generally in line with most Seydel dealers.

I like to provide my customers with options that might not otherwise be available.  This includes economical harmonica configurations, tunings, temperament and choices that are specific to their playing.

I also specialize in Seydel repairs and have an extensive stock of spare parts for Seydel diatonic and chromatic harps.  More information on repairs is available on the link to the right.

As a way to insure my customers get exactly what they need, I accept orders by email instead of drop-down menu format.  This allows me the satisfaction of developing a relationship with my customers and guarantees  I am in tune with their needs.

I accept Paypal, credit cards, and personal checks.  As a matter of general practice, I do not invoice customers until the order is ready for shipping.

Thank you for stopping by and I look forward to hearing from you.



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