2. How to tune a piano Piano Tuning Lever Piano tuning lever is about 12“ cm long The tool for tuning is called a Piano tuning lever, hammer or wrench. The tuning lever is specially designed to fit piano pins, which are square and tapered. This is the most expensive but also the most important tool you'll need. It has a special "star" socket shape that is designed to fit piano pins at multiple angles for the best control. It is also tapered inside, to match the taper of the pin. The most popular tip size is a #2

3. History Pianos are popular instruments which were brought in on the 1909. when pianos were brought in other instruments became un fashionable

4. A musical keyboard is the set of adjacent depressible levers or keys on a musical instrument, particularly the piano. Keyboards typically contain keys for playing the twelve notes of the Western musical scale, with a combination of larger, longer keys and smaller, shorter keys that repeats at the interval of an octave Depressing a key on the keyboard causes the instrument to produce sounds, either by mechanically striking a string or tine (piano electric piano, clavichord; plucking a string (harpsichord); causing air to flow through a pipe (organ); or strike a bell (carillon). On electric and electronic keyboards, depressing a key connects a circuit (Hammond organ, digital piano synthesizer). Since the most commonly encountered keyboard instrument is the piano, the keyboard layout is often referred to as the "piano keyboard".

5. About the piano The piano is a musical instrument played by means of a keyboard. It is one of the most popular instruments in the world. Widely used in classical and jazz music for solo performances, ensemble use, chamber music and accompaniment the piano is also very popular as an aid to composing and rehearsal Although not portable and often expensive, the piano's versatility and ubiquity have made it one of the world's most familiar musical instruments.

6. Different brands