harmony
That instrument is called a Metronome.
This is generally called a jukebox musical.
There really is no technical name for someone who impersonates musical instruments and machines. They would simply be called an impersonator of musical instruments and machines.
A numbered musical piece might be called a concerto, an opus, or a composition. It could also be called a symphony.
It is known as an Octave (a musical scale of eight notes).
A combination of pleasant sounds is called harmony. It is the pleasing arrangement of musical tones that agree with each other.
Sounding board
That instrument is called a Metronome.
A pleasant complex sound is a consonance, an unpleasant is a dissonance
The first Skulduggery Pleasant book is just called 'Skulduggery Pleasant'. It was retitled "Skulduggery Pleasant: Scepter of the Ancients" for US release.
The repeated use of the "o" sound in "A host of golden daffodils" is an example of assonance. Assonance refers to the repetition of vowel sounds within a sentence or phrase to create a harmonious effect.
In a stringed musical instrument, the part that vibrates in resonance with the sound waves produced by the strings is called the soundboard or the resonating body. This part amplifies and projects the sound created by the vibrating strings to produce audible music.
A sounding
Its just Skulduggery Pleasant
musicalS are called musicalS because they have MUSIC in them making them MUSICAL
Sonar.
Clarabella