Hello my friends, I am totally new here, in the exposition of my pianistic days!
I have been studying theory most of all, as my instrument is a sub-par digital standing in for a true instrument until I can begin my official studies. While researching theory, and watching voluminous amounts of videos and performances, I became a tad confused about cadences. In particular, the perfect cadence when played as two triads does not sound conclusive to me, nearly at all. G major to C major, for example, leave me feeling as if it were two undefined and uncoloured block chords that don't really conclude. They simply sort of sit there in mid air, yet G to C is a perfect cadence.
When played as simply the note G to the note C, it sounds very conclusive, of course. However, playing the major triads does not give me that feeling of finality. A friend of mine suggested playing a G7 to C, but that sounded still less convincing as something to end upon. I am aware that a piece must begin in C for the perfect cadence to work from G major to C major, but even then if I progress from a C triad and eventually to a G triad, then back to C, it feels like something is missing.
How do perfect cadences larger than one note (i.e. chords) become conclusive sounding? I hope it's not too ambiguous a question.