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Oscar Schmidt OS21C 21 Chord AutoHarp - Classic - Free Gig Bag and Chromatic Tuner

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Autoharp OS21C Summary

This 21- chord OS21C autoharp plays in eleven different keys. The patented chord bar configuration makes it easy to learn and to continue to play for years to come. This is one of our most popular models.


"The Oscar Schmidt OS21C 21 chord autoharp is the beginner’s choice of autoharps. With its beautiful sunburst finish and its low cost, it's no wonder that this is one of our best selling autoharps.

The body of this attractive autoharp is constructed from maple and has a glossy finish. The glossy finish of this autoharp will give is a slightly muted sound. There is a frame of rock maple along the edge of the instrument as well as a 10 ply pinboard. This strong pinboard will make sure that the pegs will not gradually turn and will keep your strings in place. The sound cavity of this autoharp is large and will give you a great tone.

A couple of improvements to the Oscar Schmidt line of autoharps has been the addition of thicker felt padding to the chord bars and the addition of foam padding to the underside of the chord bar cover. This helps prevent the keys from becoming stuck underneath the cover and dampening any unwanted noise from the chord bars.

Currently, at, we are including a FREE gig bag with the purchase of any Oscar Schmidt Autoharp purchase. You can also choose from an instant $30 rebate off the purchase of either a Tuff Skin Padded Bag or Grey Ultra Plus Padded bag. In addition to the FREE gig back, we will include a free tuner with your purchase of an autoharp. There is also the option for a discounted digital tuner that has a built-in metronome and tone generator. We also offer a $20 flat rate shipping in the continental US for any autoharp. has available a wide range of books that will help get started with playing the autoharp and learning about the instrument. We also have available a variety of picks that can be used for different functions. is the premier online retailer of autoharps and autoharp accessories. We have technical support Monday through Friday from 9 am to 7 pm and Saturday from 9 am to 5 pm eastern time. You can reach us by phone, live chat, or by e-mail. Please feel free to contact us with any questions you may have."


OS21C Classic Autoharp
Whether you are an Autoharp player, a student of American folklore, or even a collector of antique musical instruments, you should find the history as well as the instrument itself unique.

This 'harp was designed with the player in mind. The Sunburst satin finish gives the OS21C a very attractive look with a classic touch. The body is made with select maple wood, designed for strength and optimal support. It is a very light-colored hardwood with a very even grain texture.


Incredible Strength

The pin blocks in many of the finest autoharps consist of hard rock maple for extra strength. The pin blocks are laminated rock maple pin blocks meaning they are specially coated for extra strength. The purpose of the pin block is to firmly hold the tuning pins in place where the strings are attached. The added strength of the laminated rock maple ensures that everything will stay in the right place.

Multiple layers of maple laminations are cross-banded using a special high frequency, waterproof gluing process. Reversing the grain direction on each layer of lamination yields incredible strength and the high-frequency waterproof glue seals the laminations protecting the pin block from changes in the relative humidity.

The Autoharp, like the piano, is a tempered scale, so the same strings are used in several chords, even when perfectly in tune in one chord may sound slightly sharp or flat in another. Over time as strings loosen, use fine tuning to tighten so it can reach its limits. The first twang of a string is higher and the tone settles in after a second. Turn the tuner to 442 and attach the clip to the middle peg.
OS21C Autoharp Back


Pin Block
Oscar Schmidt Original
What's in a name? Quality, history, and tradition. Our Autoharp is the original, with over 100 years of history behind it. A wide variety to choose from. Oscar Schmidt is truly the original and only complete source for the Autoharp. Premium woods, quality hardware, and modest prices create an ideal instrument. Each is inspected and adjusted in the USA by a skilled technician, your assurance for smooth fret ends, precision low action and resonant sound quality. Unequaled standards, easy playing comfort, and tone response create the perfect value.


Product Specs

Model # OS21C Classic
Chords 21 Chord
Front Finish Red Satin Burst Finish
Back Finish Gloss Maple with rock maple pin block
Additional Features Plays in eleven keys
Warranty 5 Years

Note: Autoharps no longer have a built-in tuner (see promotions for tuner deals)


Our products are brand new and are still in the original package. They are stored in our temperature controlled warehouse to prevent any damage or warping. Our first-in first-out inventory system assures that you will receive the newest Autoharp available. We specialize in Oscar Schmidt Autoharps and accessories, so our time and energy are devoted to Autoharps. This allows us to provide our customers with the highest quality service and the best products available.

We are an authorized Oscar Schmidt dealer, so you know that we offer the best products on the market. The AutoHarp Store makes it fast and easy for you to find what you are looking for. With our easy ordering system and same day shipping*, it is easy to order and arrives quickly to your door. In order to cut costs to offer our customers the lowest prices, we do everything online. Although most people would prefer to try out a product before they purchase it, by not having a showroom or storefront, we can offer the lowest prices in the market.


Accessories Included

Tuning Wrench and Picks
Tuning Wrench
Assortment of Picks
(Over a $10 value, yours FREE!)



Get Your Bonus Promotions!

  1. Add your favorite autoharp to the shopping cart
  2. Then make your case selection on the next page!

Learn more about each product by clicking on the tuner/case images below. This bonus promotion is for a limited time and only while supplies last!


Bonus Promotion: Purchase an Autoharp by Oscar Schmidt from and you'll have the choice of a FREE Padded Gig Bag or take $30 off your purchase when you add on either Tuff Skin Padded bag or Grey Ultra Plus Padded Bag.

Case Choices:    
hr-custom-green Gig Bag Free More Info

hr-custom-green Tuff Skin Padded Bag Save $30 More Info

hr-custom-green Grey Ultra Plus Padded Bag Save $30 More Info

Added Bonus Promotion:
 Purchase an Autoharp by Oscar Schmidt from and you'll have the choice of either a FREE Tuner (a $23.00 value) or take $20 off the 3-in-1 Chromatic Tuner. Simply add either tuner to your shopping cart to get your instant savings!

Choose Your Tuner & Stand:
free tuner Chromatic Tuner (HT-2005) FREE  More Info

hr-custom-green Tuner + Metronome + Tone Generator 3-in-1 Save $20 More Info

hr-custom-green $13.6 Off Solid Wood Stand Save $13.6 More Info



“An American instrument of American invention.”
The Autoharp is one of the few musical instruments that can claim to be truly American in origin.

Invented in 1881 and patented in 1882, the Autoharp has had a remarkable hundred-year history. After being proclaimed “the nation’s favorite musical instrument” and then nearly fading into obscurity, the Autoharp has taken its manufactures on an endless roller coaster of ups and downs. As a nineteenth-century parlor room favorite, it was finally replaced in popularity by the phonograph. The Autoharp did not die. It retreated to the mountains where it underwent a metamorphosis from a parlor instrument to a folk instrument. From there it came out into our schools to become a classroom feature and finally has emerged as a popular instrument for the serious musician.




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