Hello i am new to producing...and i decided to try and sample a piano sound from a track i have heard.

I had a very clean cut sample of one note...i exported it as a .wav then loaded into Reason.

I thought and correct me if im wrong if i sampled a piano key once i load it into Reason the middle C would be the sound i sampled and change it's pitch as i move up and down the keyboard...

I did just that and yes the sound sounded good at middle C...sounded the same as in the song i sampled it from...Problem came once i tried to use the other keys on the keyboard..it sounded lame and not true to the middle C or anything like the original track...

Sorry if this is hard to understand im new to all this and was just wondering if this is even possible?