---------I base this on the statements that:" ......

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I base this on the statements that:

" ... The new algorithms were first [i.e. originally] designed to play sine-waves (at any desired frequency). As every acoustic professional will attest, production of sine waves cements the fundamental building blocks for playing any sound. ... "

If your algorithms are designed to play sine waves they can play sounds as complex as the Hallelujah Chorus.

Aug 29 2018: " ... Audio Pixels is pleased to announce that musical sound has been produced from chips/wafers. Our proprietary MEMS chips, ASIC and Algorithms are now reproducing complex music (specifically “Hallelujah” by George Frideric Handel); a major advancement from the previously announced single tone playback on 4 July 2018. ... "

The MEMS then was however problematic.  Now it is fixed.  Ergo, your algorithms will play complex music on your fixed MEMS.  

If your MEMS devices work properly and are simpler and more capable, then you probably know how to make the adjustments and redesigns to use them to even greater levels of performance.

"... The third major breakthrough pertains to the advancement in reproducing sound. Resolving operational stability of the devices enabled the company to take detailed acoustic measurements and make great strides furthering the playing capabilities of our devices. The primary activity involves adjustment of the driving schemes and development of new functional algorithms to take advantage of the physical realities of the simplified structures. ... "