It's made with strings.
A Jew's Harp (or mouth harp) doesn't have any strings. It is metal, played with the hand and controlled by the mouth.
It's made with strings.
strings
The harp is a unique member of the stringed instrument family. Like other members of the string family, the harp's sound is produced by vibrating strings stretched between parts of a wooden frame or box. On a harp, the strings' vibrations are produced by being plucked by hand, while seven pedals at the bottom of the harp adjust the length of the strings to produce more notes.
the different lenghts play different pitches or notes, the longer the string, the lower the note.
Banjo includes the letter J. A Jug is a musical instrument.
The length of harp strings can vary depending on the type of harp. For example, concert grand pedal harp strings can be around 6 feet long, while smaller lever harp strings may be around 3 feet long. The length of the strings corresponds to the pitch they produce when plucked.
47 strings in a full size harp
Harp strings may be made of various materials, including; nylon, gut, wire or silk.
they pull strings on the harp
harp
Different types of harps have different numbers of strings. A standard concert pedal harp has 46 or 47 strings, whereas a lever harp has fewer strings.