Verified Dimension Model

Kawai K-300 Professional Upright Piano

Award-winning Japanese acoustic upright featuring Millennium III carbon-fiber action and long soundboard projection clearance.

Accuracy Disclaimer: Spatial visualizations are mathematical 2D estimations. Always physically measure your space with a tape measure, verify doorways/stairwell turn radii, and consult official manufacturer documentation before purchasing high-value musical instruments.

YES, IT FITS PERFECTLY
Piano Footprint 1.53m × 0.62m
Total Clearance Envelope 1.73m × 1.47m
BENCH & PLAYER ENVELOPE Yamaha U1

Recommended Stand & Accessories

Kawai Hardwood Caster Cups

Non-slip solid wood floor protectors.

View at Sweetwater
Utility & Practice Dashboard

Acoustic Grand Piano Practice & Control Hub

Comprehensive shortcuts, fingerings, techniques, and mobile controls for optimal playability.

Keyboard Shortcuts

QWERTY Key Mapping

  • A - K Natural scale notes (C4 to C5)
  • W, E, T, Y, U Accidentals / Sharps
  • Space Sustain Pedal Toggle

Chord Reference

chords & Techniques

  • C Major
    C - E - G
  • G Major
    G - B - D
  • A Minor
    A - C - E
  • F Major
    F - A - C

Step-by-Step Guide

How to Practice Effectively

  1. 1 Select your preferred tone variant or grand/upright acoustic preset.
  2. 2 Use mouse clicks, multi-touch taps, or mapped QWERTY keys to play notes.
  3. 3 Use the sustain pedal (Space key) and recording controls to capture your session.

Pro Tips

Technique & Ergonomics

  • ✓ Keep your wrists relaxed and slightly curved to prevent fatigue during practice.
  • ✓ Practice slow scales with a metronome before speeding up.
  • ✓ Use headphones to hear subtle harmonic damper overtones and resonance.

Common Mistakes

Beginner Traps to Avoid

  • ✕ Holding keys down too hard — browser audio triggers on initial press.
  • ✕ Ignoring timing drift — rely on visual feedback and metronome sync.
  • ✕ Practicing without proper wrist ergonomics or hand posture.

Mobile & Touch

Tablet & Phone Controls

  • • Supports 10-point multi-touch on iOS Safari and Android Chrome.
  • • Turn off silent mode on iPhones to ensure Web Audio API output.
  • • Use landscape orientation for optimal fingerboard width.

Knowledge Base & FAQs

Frequently Asked Questions

Everything you need to know about our browser-based Web Audio engine, instruments, and music theory workspace.

What are the exact dimensions of the Kawai K-300 Professional Upright Piano?

The Kawai K-300 Professional Upright Piano measures 1490mm (1.

49m) wide by 610mm (0.61m) deep by 1220mm high, weighing 500 lbs.

How much seating space is required for the player bench?

We recommend leaving at least 750mm (0.

75m) of depth behind the keybed for player seating and bench placement.

Can this piano fit in a small room or apartment?

Award-winning Japanese acoustic upright featuring Millennium III carbon-fiber action and long soundboard projection clearance.

Are spatial visualizations 100% exact?

Visualizations are mathematical 2D estimations.

Always physically measure your space with a measuring tape before purchasing high-value musical instruments.