Founder's Batch Closing March 2nd. Retail MSRP ($1,199) Takes Effect After.
Why We're Doing This

Playing the piano
doesn't have to hurt

Pianist playing
"I often witness pianists place their hands for the first time on a keyboard that better suits their hand span. How often the pianist spontaneously bursts into tears. A lifetime of struggling with a seemingly insurmountable problem vanishes in the moment they realize, 'It's not me that is the problem; it is the instrument!' Following on that, the joy of possibility overwhelms them."
Dr. Carol Leone

Dr. Carol Leone

Chair of Piano Studies
SMU Meadows School of the Arts

Hand Span Calculator

A Keyboard That Fits You.

DreamPlay's DS Standard keyboards come in different sizes to match your biology.

📏
Find Your Zone
Your hand span
8.0" / 20.3 cm
Small (6 in)Average (8 in)Large (10 in)

Drag the slider to see which Zone your hand size belongs to.

Hand span guide
How to measure

Spread your hand wide. Measure from the tip of the thumb to the tip of the pinky.

Your match
Zone B
Hand span range: 7.6 to 8.5 inches
DS6.0
Recommended model
Learn about the DS Standard

The 'Goldilocks' size. Slightly narrower than standard, giving you the power of a concert pianist without the stretching fatigue.

Capability Unlocked
Play 10ths with new ease

Performance

Unlock Your Potential

Matching your hand size to the correct keyboard unlocks greater comfort, accuracy, and musical expression.

Zone A Players

Petite Hands / DS5.5 Standard

Conventional (DS6.5)8 Notes
DS5.5 Model10 Notes

Zone B Players

Average Hands / DS6.0 Standard

Conventional (DS6.5)9 Notes
DS6.0 Model10 Notes

The Data

The Hidden Barrier

87%
of females

Have hand spans smaller than the 8.5 inch minimum that standard keyboards expect.

0%
Too small
Comfortable
24%
of males

Also fall below the comfortable reach threshold for a standard 6.5 inch keyboard.

0%
Too small
Comfortable
8.5"
The Threshold

Minimum hand span needed to play a conventional 6.5 inch keyboard from Yamaha or Steinway with real comfort.

25 to 30%
Larger Reach Required

Hand span often needs to be at least one quarter larger than the octave just to reach 8ths, 9ths, and 10ths without strain.

Clinical Research — Biomechanics

Peer-Reviewed Analysis

How Standard Keyboards Cause Pain

When small-handed pianists attempt to play octaves or large chords on a standard keyboard, they are forced completely out of an "anatomically neutral" position into a state of maximum stretch known as hyperabduction.

Standard Keyboard (Left)

Players depress keys with fingers splayed completely flat, destroying the supportive bridge-like arch of the hand. This is accompanied by severe ulnar deviation — bending the wrist sharply toward the pinky — severely straining the lumbrical muscles and compressing the median nerve.

Narrower Keyboard (Right)

The same hand maintains an anatomically neutral arch and relaxed wrist position. Full mechanical leverage is restored, allowing arm weight to transfer directly into the keys — producing a richer, more powerful tone with zero strain.

Key Findings

86% of university piano majors experience active pain while playing

Over-stretching leads to tendonitis, focal dystonia, and carpal tunnel syndrome

Narrower keyboards show a drastic reduction in muscle fatigue via EMG

Sources

  • Yoshimura, E., et al. (2006). Risk factors for piano-related pain among college students and piano teachers. Medical Problems of Performing Artists.
  • Sakai, N. (2008). Keyboard Span in Old Musical Instruments Concerning Hand Span and Overuse Problems in Pianists.
  • Wristen, B. (2000). Avoiding Piano-Related Injury: A Proposed Theoretical Procedure for Biomechanical Analysis of Piano Technique. Medical Problems of Performing Artists.

Evidence

Published Research

Decades of peer reviewed research explain why standard keyboards hold most pianists back.

Hand size and performance related injuries
Applied Ergonomics, 2021
Pianists with smaller hands show reduced muscular effort and lower perceived strain when they move to 5.5 inch octave keyboards instead of standard size.
Read full study
Gender differences and career impact
Susan Tomes
Studies note that internationally acclaimed women pianists tend to have larger hands, which aligns with a repertoire that often expects very wide reaches.
Read article
Benefits of ergonomically scaled keyboards
Survey of reduced size users
Players report relief from pain, faster technical progress, and greater comfort when they move to keyboards that match their hand span.
Read full study
Performance quality improvements
PASK findings
Shorter reaches and reduced wrist travel on compatible keyboards are linked to better control and lower risk of overuse injuries.
Learn more

Academic recognition

The Donison Steinbuhler standard appears in research and teaching at leading institutions.

Stanford University

Research and advocacy around scaled keyboards in music education and injury prevention.

Johns Hopkins Peabody Institute

Use of alternative sizes inside curriculum and performance programs.

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