C major.. It's all the white notes, of course, on piano, however people seem to think the most straightforward key tone is easy, and often consider it pretty blank in value, or in what it has to offer in choice of tone.
However they forget there's a couple of semi-tones hidden away there and, it's amazing what expressive value there can be found within that apparently ordinary looking key.
Sometimes after practicing maybe more complex pieces, perhaps with lots of flats, and sharps, it can be quite nice to play a tune in that simpler C major key, which on most instruments is so readily accessible; maybe it is the "friendly" key therefore. After all it is, mostly, the very first one in which all music books in music theory begin with at the onset.
That's C major; the genial fellow that takes your hand and oft introduces one to the world of music.
Let us 'toast' to C major!
Anyone else have there favourite key? What do you think?