Answer:Key of C Major: Known for its bright and cheerful sound, often used in beginner piano pieces since it has no sharps or flatsKey of G Major: Also bright and happy, with one sharp (F#). Popular in folk and pop musicKey of D Minor: Known for its melancholic and somber tone, often used in classical and emotional piecesKey of E Major: Bright and lively, with four sharps. Common in rock and blues musicKey of F Major: Warm and rich, with one flat (Bb). Often used in orchestral and romantic music