CD includes a demo track (complete song, with lead vocal) and performance tracks (without lead vocal). Vocal ranges: H-M-L. Keys: Gb - Eb - C. Studio Track: This is a studio produced track recorded "in the style of" the artist listed. While the instrumental music will be similar, it is not the original recording, and the voice you will hear on the demo is not the original artist. Original Key both with & without background vocals; other keys with background vocals.