Curiously, my earliest, and perhaps longest lasting, experiences with piano music involved my parents' fairly sizeable collection of David Lanz and Yanni CDs (no, really), which they would play on Sundays for a relaxing atmosphere. I remember enjoying a few particular pieces immensely, but strangely I don't recall ever really associating what I heard on the stereo with, well, grand pianos, pianists, etc--I never really gave much thought to how the sounds were actually produced. Even when I heard the "Piano by Candelight" CD and, slightly later, played around with an old Roland digital, listening to the demo tracks, it never really occured to me that there were people who really played the piano like that--I had no concept of what it was to play the piano, in other words, and I don't recall ever even seeing a grand piano up until...probably a year after I started lessons!
Though, incidentally, I will also add that I had quite some experience with "classical" music in general early in life. I was quite repelled by typical pop or rock or...whatever...songs on the radio, except for a few out-dated (even then) songs that put me into a trance when I heard them haha, but nevertheless I always insisted on listening to the radio at nights...so, indeed, I switched to the classical station and found it overwhelmingly satisfying, even though I wouldn't even give it much thought for at least 6 more years!