Sorry, but the Virtuoso Piano book was kind of a joke persay. Yes it can exercise your fingers, but even though I have one of those books I never use it. By the time I get done with it and the first few exercises, that is all there is in my head. Even months and years later, I can repeat the first few exercises by heart in my head. I find that when I tried to use it, all that ended up in my brain for music was that book and those exercises. If anything like me, I defer not using that book unless you do not have a memory. Perhaps listening to hours of music of something else a day would eliminate that. I prefer not to be driven crazy by that book. But it would help my fingers play better though.
I sure they have chord videos at utube probably also. Actually piano is not that hard. You have 12 notes in an Octave, and all the way up and down on the keyboard they are the same, just like moving up the frets on a guitar with the same chord. Only thing different on the piano is learning the notes that make up the chord, and with different chords the intervals of the notes are all the same. I suppose learning the intervals that make up the chords might help, but unlike guitar where you might learn different fingerings for chords and remember those, on the piano it is just you have to learn what makes up the chord and in different octaves of a piano or even an octave and a half, there is not that many different positions to move the chord up or down the piano.
https://www.youtube.com/results?search_query=Piano+chords Obviously this is another probably dumb post, and you will have to excuse me. If you know the notes of any scale, then applying by thinking of what notes make up a major, minor, dim, augmented, min7, maj7, 9th or any other chord on the piano is basically just another set of finger spacings depending on the key signature somewhat like a guitar that you learn to play. Well, obviously also I do not teach any musical instrument either.
It's getting your fingers stuck between the black and white notes on the piano that is different nowadays with the smaller spacing between the white and black keys on the piano. I swear on a regular piano (not a synthesizer) there use to be more room between and on all keys. Now on a synth like it is only an inch for a key space, where before I swear it was 1-1/4", at least on a guitar somewhat you can pick out the length of the neck you want - 24.75", or 25.5" somewhat, on a piano, no you usually can not do that anymore.
http://www.dolmetsch.com/theoryintro.htm I suppose that may be a worse website, but it is all music theory.
And at last:
https://www.youtube.com/watch?v=X6YsfxrCVYU Tones and semi-tones and the interval between those make up chords on a piano (actually it is music theory even on a guitar).
Then with guitar strapped on your neck using your hands, and piano on the desk using your feet and perhaps your head for bass drums or drums, you can end up like some of these people making more money than a lot of musicians make in this world, being a one-person band.
https://www.youtube.com/watch?v=-2lo5Iz3gRYhttps://www.youtube.com/watch?v=nDLrpG0DCqIOkay, I am done!