Just to echo and expand on some of the comments from above…
I think taking into mind what some of the comments above have said about what's being echoed by the design will help you hone into what you want. People are gravitating toward musical shapes and language (piano keys, accidentals), and questioning what the identity of the shape means. Personally, I see those, I see a computer mouse icon, the Roman letter A, the Arabic numeral 4, an "E" on the end (for "experiment"?), I see a little bit of a cat's face.
Given the video and what you said about your project, maybe emphasizing the piano visuals is a good point, maybe by extending how many bars there are to make it look more reminiscent of the piano? And if electronics are going to be a prominent feature of the project, there's probably a way you can incorporate that (as well as the idea of a spark) to make the piano imagery a little more experimental, like what @randy mentioned about the notches.
Perhaps there's more to do in the way of integrating the logo with a wordmark of "iskra" so that you can have a little more flexibility with both how it's presented and how much of the idea of the spark or of the piano you want to integrate into the logo. You could have the spark live in the logo and the wordmark be more like a piano, or have the logo be pointed more directly toward the piano and let the name iskra stand alone as providing the spark.