You dont often see those kinds of smarts on a piano of this form factor.
After all, console pianos are a piece of furniture as well, even when they are digital.
All those lights and buttons and doodads arent very attractive on what should be a classy centerpiece.

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Yamaha gets around this with a few clever tricks.
Everything else is controlled via an intuitiveAndroid and iOS app.

Browse around piano forums and youll see thousands of messages debating piano actions.
Yamahas sound system is impressive on paper.
There are four speakers positioned strategically for a more enveloping sound.

(Here too the CSP-150 differs, only offering two speakers and 60 watts of power.)
Thankfully, theres that app I mentioned.
The first thing I did was test whether I could make the sound a bit brighter.

Lo and behold, theres a brightness option in the sound configs portion of the app.
But the heart of the CSP-170 is in the music learning features.
The app itself doesnt display anySynthesia-style falling notes and defaults to the sheet music.

My only real problem with the stream lights is with their colors.
Red is for white keys, blue is for black keys.
Its somewhat redundant, as the lights already have different shapes matching that of the keys.
I wouldve much preferred each color represent your left or right hand.
Still, its a handy feature to have, and one thats completely optional.
Im more enamored with the CSP-170s ability to analyze music in your library and create chord progressions for it.
it’s possible for you to even bring in singers, thanks to a microphone port as well.
That said, keep in mind it only works with music you have actually purchased streaming titles wont work.
Youll still get the same music analysis and sound tuning features.