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Williams Legato IV Digital Piano | Demo and Overview with Lynette Williamsplay button

Williams Legato IV Digital Piano | Demo and Overview with Lynette Williams

Williams Legato IV | 88-Key Digital Piano With Bluetooth & Sustain Pedalplay button

Williams Legato IV | 88-Key Digital Piano With Bluetooth & Sustain Pedal


collapse expand iconDescription

The Williams Legato IV digital piano motivates aspiring keyboardists with a stunning concert grand sound—as well as a collection of electric pianos, organs, strings, basses and a synth—along with effects (reverb, rotary speaker, EQ and more), a full-range speaker system and Bluetooth connectivity that makes learning fun and inspiring. The Legato IV’s 88-key, velocity-sensitive keyboard makes it easy for players to master the dynamics needed to perform classical, jazz, rock and other styles. The free Williams Piano App (iOS) gives players the option to further personalize their rehearsal sessions with play-along features, customization of the Legato IV instrument sounds and effects, and more.

Williams Legato IV Enhanced Speaker Construction

Ported Speakers With Resonant Sound

Unlike some digital pianos that deliver uninspiring sounds through very basic speakers, the Legato IV offers a truly immersive experience through a completely redesigned and upgraded audio system. Each speaker has two drivers (a woofer and a tweeter) in order to present a broad frequency spectrum that reproduces every subtle detail of the music. But there’s even more to the audio story. The speakers are enclosed in onboard resonant spaces that are ported—just like professional studio monitors and PA cabinets—in order to produce warm yet taut bass with increased volume. The Legato IV’s sound output is further enhanced by DSP tuning. So, you don’t just hear the pianos, organs, bass and strings—you feel them.

Williams Legato IV Onboard Sounds

12 Onboard Sounds

The centerpiece of the Legato IV is a gorgeous Italian concert grand piano. Recorded in a professional studio at various dynamic levels, this celebrated piano sound is as real as it gets—especially as the Legato IV’s velocity-sensitive keyboard precisely translates all the drama in your performances when you play soft, loud and everything in between. However, the Legato IV isn’t simply an incredible keyboard for aspiring classical and jazz pianists, or even fans of pop rockers such as Elton John and Lady Gaga. With 11 additional sounds, you can choose from a bright acoustic piano, two vintage electric pianos, two organs, strings, acoustic and electric bass, vibraphone and choir. The Legato IV includes many of the basic keyboard sounds you’d need to play most styles of music, and, as a creative engine for songwriters, it stands at the ready to inspire new songs. Even if your imagination goes beyond organic keyboard sounds, the Legato IV has you covered. You can craft evocative new tones using onboard effects such as 2-band EQ, reverb, chorus and rotary speaker. There are 12 onboard demo songs to study if your creativity needs a bit of a nudge, and a metronome for locking in your tempos.

Williams Legato IV Bluetooth Audio and MIDI

Bluetooth Audio, MIDI and USB

The Legato IV digital piano offers comprehensive connectivity to expand your enjoyment, exploration and education. Bluetooth audio plays sound from music tracks and videos through the Legato IV’s speakers, so you can jam along with your favorite songs and dig into YouTube lessons and other educational materials. In addition, Bluetooth MIDI is on hand to wirelessly access teaching apps, such as the Williams app and the included trial period of Skoove Platinum piano lessons. Go further by using the built-in USB audio/MIDI interface to connect with computers, DAWs and tablets. For jamming with friends and songwriting sessions with other players, the Legato IV has stereo/mono line out jacks for plugging into a keyboard amp, powered speaker or PA system.

Williams Legato IV iOS App

Williams iOS App

Dig deeper into the Legato IV with the free Williams Piano app for iOS. Run from an iPad or iPhone, the app provides more customization for the sounds and effects, offers a collection of Jam Session songs, lets you select from four keyboard modes (single, split, layer and split+layer), adds a drum machine, allows tuning of the piano, gives you access to the music library on your iOS device to select songs to play along with and more.   

Williams Legato IV Optional Pedals

Awesome Accessories

The Legato IV digital piano comes with a power supply, sustain pedal and handy music rest for your books, charts and/or iOS device. If you want to go “more grand,” a beautiful wooden stand and 3-pedal controller are sold separately. The Legato IV is a powerful performance and educational tool for aspiring keyboardists of all styles, and it looks classy no matter where it rests—whether that’s a living room or a rehearsal space.

collapse expand iconFeatures

Realistic Instrument Sounds
  • Expressive stereo Concert Piano sound, recorded at several dynamic levels
  • 12 instrument sounds include vintage electric pianos, organs, strings, bass and more
  • Audio effects include reverb, chorus, rotary speaker, EQ and more
Authentic Keyboard Feel
  • Responsive 88-key velocity-sensitive keyboard
Stereo Speaker System
  • Room-filling stereo 2-way speaker system
  • Large, internal ported speaker enclosure for deeper bass response
  • DSP tuning for flat response and extended range
Bluetooth and USB Connectivity
  • Bluetooth Audio plays back music, videos, and apps through the piano speaker system
  • Bluetooth MIDI connects to apps like the Williams app and included Skoove Platinum trial
  • Built-in USB stereo audio/MIDI interface for computer or tablet connection
Included Accessories
  • Solid music rest supports heavy music books and tablets
  • Power supply and sustain pedal included
  • Optional wooden stand and 3-pedal controller (sold separately)
Williams app for iOS
  • Use your iPad or iPhone to control the piano
  • Set up sound splits and layers for different sounds across the keyboard
  • Customize up to three different effects plus EQ
  • Practice along with your music library without changing the pitch to learn new songs

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer, and Lead, which is known to cause birth defects or other reproductive harm. For more information go to

collapse expand iconSpecs

  • Keyboard: 88-key velocity-sensitive keyboard
  • Polyphony: 128 voices
  • Instrument sounds: 12
  • Layer control: Layer, Touch, Split, Transpose, Metronome
  • Connections: USB, Sustain, 3-pedal unit, Line Out (1/4" unbalanced left and right), 1/8" Stereo AUX input, two 1/8" headphone outputs (on front panel)
  • Included accessories: Sustain pedal, power supply, music rest
  • Dimensions: 52" x 13.2" x 4.5"
  • Weight: 35.5 lb.

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