Piano is the greatest invention of the classical music period, the seventeenth century. There is a rich and wide repertoire of music available for piano. Nowadays, pianos are built in two versions: Grand Piano and Upright Piano. With the growth of technology we do also get a digital piano nowadays but not definitely as a replacement of the original acoustic piano. A grand or upright piano needs regular tuning. The piano is an acoustic, stringed musical instrument, in which the strings are struck by hammers. It is played using a keyboard, which is a row of keys (small levers) that the performer presses down or strikes with the fingers and thumbs of both hands to cause the hammers to strike the strings. Invented in about 1700 (the exact year is uncertain), the piano is widely employed inclassical, jazz, traditional and popular music for solo and ensembleperformances, accompaniment, and for composing, songwriting andrehearsals. Although the piano is very heavy and thus not portable and is expensive (in comparison with other widely used accompaniment instruments, such as the acoustic guitar), its musical versatility (i.e., its wide pitch range, ability to play chords with up to 10 notes, louder or softer notes and two or more independent musical lines at the same time), the large number of musicians and amateurs trained in playing it and its wide availability in performance venues, schools and rehearsal spaces have made it one of the Western world's most familiar musical instruments. Learning piano gives the student a strong foundation in music with regard to the range of notes, finger dexterity, a good sense of pitch, and good knowledge of harmony and composition.