Williams Aeris 73 Arranger Keyboard - Slate

Give your ideas more room to move—from two-handed piano parts to synth leads, custom beats and full-band arrangements. The Williams Aeris 73 portable arranger keyboard expands the Aeris experience with 73 full-size velocity-sensitive keys, 550 instrument sounds, eight performance pads and dedicated pitch and modulation controls for players ready to explore beyond the basics. Its 115 accompaniment styles cover contemporary and traditional genres, while an enhanced full-range speaker system with Williams Ultra Bass delivers fuller low-end response. Bluetooth Audio and MIDI connect the keyboard with music, videos and compatible apps, and USB audio/MIDI functionality extends its versatility into computer-based music making. Whether practicing piano, developing arrangements or experimenting with beatmaking, the Aeris 73 combines an approachable interface with performance features that give players room to grow.

73 Velocity-Sensitive Keys Give Performances Room to Grow

The expanded 73-note keyboard provides additional range for two-handed playing while responding to performance dynamics, allowing notes to change with the force of each keystroke. That responsive action supports expressive piano practice as well as synth, orchestral and layered performances, while 64-note polyphony provides additional room for more involved arrangements. Split and Layer modes let players divide the keyboard between sounds or combine voices together, and dedicated pitch and modulation controls provide hands-on ways to bend notes and shape sounds during a performance.

550 Sounds and Modern Styles Expand Musical Possibilities

The Aeris 73 includes 550 instrument sounds spanning acoustic and electric pianos, synths, orchestral instruments, drums, effects and more, giving players a broad palette for practice, arranging and experimentation. Its 115 accompaniment styles add drums, bass and other backing instruments to a performance, with contemporary options including EDM, K-pop and hip-hop alongside other musical genres. Styles respond to notes played on the keyboard, while dedicated controls let performers add fills, change sections and trigger endings to shape the backing arrangement as they play.

Eight Performance Pads Add Hands-On Rhythm Creation

Eight integrated pads provide a hands-on way to trigger percussion sounds for accents and rhythmic ideas during a performance. Switch into Drum Machine mode and those same pads become tools for creating custom beats and patterns, adding a separate rhythm-making workflow alongside the keyboard's built-in accompaniment system. Combined with the pitch wheel, modulation control and extensive sound library, the pads give players multiple ways to move beyond conventional keyboard practice and experiment with performance, beatmaking and arrangement.

Bluetooth and USB Connect Apps and Computer Workflows

Bluetooth Audio lets songs, backing tracks, instructional videos and other compatible content play through the keyboard's speaker system, making it easy to practice along without a separate set of speakers. Bluetooth MIDI provides wireless communication with compatible music and educational apps, while USB-C allows the Aeris 73 to function as a USB audio and MIDI interface and MIDI controller. Dedicated 1/4" line outputs, a 1/8" stereo headphone output, 1/8" stereo aux input and 1/4" sustain-pedal connection provide additional flexibility for practice, recording and performance setups.

Enhanced Ultra Bass Sound in a Portable Design

The enhanced full-range speaker system combines an internal cabinet and DSP tuning with Williams Ultra Bass technology for wider low-frequency response and fuller onboard sound during practice, jams and performances. The keyboard can run from six AA batteries or the included 12V power supply, allowing players to move between rooms, lessons and other playing locations. Despite its expanded keyboard and performance controls, the Aeris 73 maintains a portable design and includes a power supply, music rest and sustain pedal. For developing musicians and creative players looking to explore beyond traditional keyboard practice, the Williams Aeris 73 portable arranger keyboard combines expressive playability, flexible accompaniment and hands-on music creation in one versatile instrument.