The encoding of the musical notation takes 14 bytes. Each note is encoded with one 2 bits.

The encoding of the musical notation takes 14 bytes. Each note is encoded with one 2 bits. How many notes are in the recording?

Let’s translate 2 bits, which encodes one note, into bytes in order to perform calculations in the same units:
2 bits = 1 byte.

Let’s find the number of notes in a recording by dividing the total recording size (14 bytes) by the weight of one note (1 byte):
14: 1 = 14 notes.

Answer: 14 notes.