Sound formation on guitar, piano and ukulele
Guitar and Ukulele
String instruments create sound when their strings vibrate. Different notes are created when string length differs. When a person places his finger on fingerboard, string length is shortened. Frets along the fingerboards are optimized to create a different note.
Sound formation in a piano is no different. When you press a key on piano it causes a small hammer inside the piano to hit a string or strings. However, on piano there is a fixed length string for each key unlike string instruments.
Next we will learn about the relationship between notes and frequency.