Hohner M590086 Big River Harp MS in G – Diatonic Harmonica

The Hohner M590086 Big River Harp MS in G is a versatile 10-hole diatonic harmonica combining durable modern construction with the expressive response associated with Hohner’s German-made MS Series. Its black ABS comb, 20 brass reeds and stainless-steel cover plates provide comfortable, reliable playability for folk, country, blues, rock and roots music.

Tuned to G major, this version delivers a warm, full-bodied voice that sits lower than common C and D harmonicas. As part of Hohner’s MS – Modular System – Series, its comb, reed plates and cover plates are interchangeable with compatible MS components, making the Big River Harp a practical choice for players who value easy maintenance and long-term versatility.

At A Glance

Feature	Details
Brand	Hohner
Model	Big River Harp MS
Product Code	M590086
Series	MS – Modular System
Type	Diatonic Harmonica
Key	G Major
Tuning	Richter
Holes	10
Reeds	20 Brass Reeds
Comb	Black ABS
Condition	New
Best For	Folk, Country, Blues, Rock & Roots
Main Appeal	Warm G tuning, durable construction and modular MS design

What Makes the Hohner Big River Harp MS Special?

The Hohner Big River Harp MS combines straightforward diatonic playability with robust construction designed for regular practice, rehearsal and performance. Its durable ABS comb offers reliable performance across changing temperatures and humidity levels, while 20 brass reeds provide the dynamic response needed for melodies, chords, bends and expressive articulation.

Its MS Modular System provides an additional practical advantage. The comb, reed plates and cover plates can be interchanged with compatible components from other Hohner MS Series harmonicas, making maintenance and component replacement more straightforward. Torx screw construction also provides convenient access when servicing is required.

Who Is It For?

The Big River Harp MS in G is an excellent choice for beginners, developing players and experienced musicians looking for a dependable and versatile diatonic harmonica.

Its G tuning gives it a deeper and warmer voice than C or D harmonicas, making it particularly appealing for relaxed melodic playing, folk, country, roots and blues.

For blues musicians using second-position technique, a G harmonica is commonly used for songs in the key of D.

Why Choose a Diatonic Harmonica in G?

A G major harmonica is one of the lower-pitched standard diatonic harmonicas, producing a warm, rounded and full-bodied sound.

The lower register gives chords extra depth and makes melodic lines feel smooth and rich, making G particularly useful for folk, country, blues and roots styles.

For second-position or cross-harp playing, a G harmonica is commonly used when playing blues in the key of D.

Durable ABS Comb

The Big River Harp MS features a black ABS comb designed to deliver reliable performance in a wide range of environments.

ABS is resistant to moisture and does not swell in the same way untreated wooden combs potentially can, helping maintain consistent playability during frequent use.

Its smooth mouthpiece surface also contributes to comfortable playing during longer sessions.

MS Modular System

The Big River Harp is part of Hohner’s MS – Modular System – Series.

Its comb, reed plates and cover plates can be interchanged with compatible components from other Hohner MS Series harmonicas. This modular approach makes replacement of compatible parts more straightforward and gives players additional flexibility when maintaining or adapting their instrument.

Responsive Brass Reeds

The Big River Harp MS features 20 brass reeds mounted on 0.9 mm brass reed plates.

This responsive reed system reacts naturally to changes in breath pressure and articulation, providing the control needed for clean single notes, rhythmic chords, bends and expressive phrasing.

Curved Stainless-Steel Covers

The stainless-steel cover plates feature a curved profile designed for comfortable handling.

Their durable construction makes the Big River Harp suitable for frequent use while retaining the familiar feel and shape expected from a traditional 10-hole diatonic harmonica.

Torx Screw Construction

The Big River Harp MS uses Torx screws to provide secure assembly and convenient access when maintenance is required.

Combined with the modular MS architecture, this makes the instrument particularly practical for musicians who want a harmonica that can be maintained over the longer term.

What's Included?

• Hohner M590086 Big River Harp MS Harmonica

• Key of G

• Hohner protective snap case

Technical Specifications

Specification	Details
Manufacturer	Hohner
Model	Big River Harp MS
Product Code	M590086
Series	MS – Modular System
Instrument Type	Diatonic Harmonica
Key	G Major
Tuning	Richter
Number of Holes	10
Number of Reeds	20
Reed Material	Brass
Reed Plate Material	Brass
Reed Plate Thickness	0.9 mm
Comb Material	ABS
Comb Colour	Black
Mouthpiece Surface	ABS
Cover Plate Material	Stainless Steel
Construction	MS Modular System
Fasteners	Torx Screws
Tonal Range	3 Octaves
Length	Approx. 10.5 cm
Country of Manufacture	Germany

FAQs

What key is the Hohner M590086 Big River Harp MS?

The Hohner M590086 Big River Harp MS is tuned to G major.

Is the Big River Harp MS suitable for beginners?

Yes. Its traditional 10-hole Richter layout, durable construction and approachable playing feel make the Big River Harp MS a strong option for beginners as well as more experienced players.

What styles of music is the Big River Harp suitable for?

It is particularly well suited to folk, western and Nashville-style country music, while its standard diatonic layout also makes it highly capable for blues, rock and roots playing.

What key can I play in using a G harmonica in second position?

A G harmonica is commonly used for playing blues in D when using second-position, also known as cross-harp technique.

How does a G harmonica sound compared with a C harmonica?

A G harmonica is pitched lower than C, giving it a warmer, deeper and more rounded tonal character.

What does MS mean?

MS stands for Modular System. Compatible Hohner MS Series combs, reed plates and cover plates can be interchanged for greater flexibility when maintaining or replacing components.

How many holes does the Big River Harp MS have?

It features the traditional 10-hole diatonic harmonica layout.

How many reeds does it have?

The Big River Harp MS features 20 brass reeds, providing blow and draw notes across its 10 holes.

Can notes be bent on the Big River Harp MS?

Yes. Its Richter-tuned diatonic layout supports expressive techniques including note bending, vibrato and blues-style articulation.

Does the Big River Harp MS have a wooden comb?

No. It features a durable black ABS comb, providing excellent resistance to moisture and environmental changes.

What is the advantage of an ABS comb?

ABS is moisture resistant and maintains consistent dimensions during regular playing, making it practical for rehearsals, live performance and travel.

Is the Big River Harp MS chromatic?

No. It is a diatonic harmonica using Richter tuning and does not feature the slide mechanism found on chromatic harmonicas.

Is the Big River Harp MS easy to maintain?

Yes. Its Torx screw construction and modular MS design make access and compatible component replacement relatively straightforward.

Does the Big River Harp MS come with a case?

Yes. A practical Hohner protective snap case is included for storage and transport.

Where is the Hohner Big River Harp MS made?

Hohner’s MS Series harmonicas are made in Germany.

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