File format for the exchange of resolution-independent, pixel-based (bitmapped) images, intended for very high quality moving image content for theatrical distribution; DPX masters provide the input for film recording (digital images back to film for projection) or D-Cinema digital projection systems.
Most modern pianos have a row of 88 black and white keys (52 white keys for the notes of the C Major scale (the notes C, D, E, F, G, A and B) and 36 shorter black keys, which are raised above the white keys, and set further back on the keyboard.
A Boesendorfer grand piano. A piano (also called a pianoforte) is a musical instrument that is played by pressing keys on a keyboard. Each key is a lever that makes a hammer inside the piano hit a string inside, producing a sound. Each string has a different length and so produces a different note.