Final answer:
A group of notes that make sense together and express a definite musical 'idea' is known as a melody or motif. Melodies are comprised of notes with specific names, forming the language of music that varies across genres and is used by composers to convey their musical narratives.
Step-by-step explanation:
A group of notes that make sense together and express a definite musical "idea" is known as a melody or motif. These basic units of music are not just random frequencies; they are specifically named, like A-sharp, C, or E-flat, and when combined, they generate tunes. The melodic styles and chords can vary widely between musical genres, from classical symphonies to jazzy improvisations.
For example, learning to play an instrument such as the piano involves understanding these melodies and their underlying notes, which may be remembered with mnemonics like "Every good boy does fine," helping to recall the notes E, G, B, D, and F on the lines of the treble clef. Moreover, the unique combination of notes and their number and relative intensityconstitute the rich language of music that is recognizable and interpretable by musicians worldwide.
Thus, through precise organization and understanding of these basic elements, composers can convey their positions, weaving together ideas in a way that makes musical sense, much like how a writer would create a compelling narrative with words.