0 any musical instrument in which sound is produced mainly by means of electricity: --
Keyboards are integral to many aerophones (eg the accordion), chordophones (eg the piano), and electrophones (eg the synthesizer).
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
Можем да го завършим стъпка по стъпка, колкото и дълъг да е пътят и не може да бъде завършен, колкото и кратък да е пътят, ако дори не маркирате отпечатъка си.