Final answer:
Billie Holiday's version of 'A Sailboat in the Moonlight' showcases her vocal range and is highly regarded. The lyrics are not optimistic and depict longing.
Step-by-step explanation:
Billie Holiday's version of 'A Sailboat in the Moonlight' showcases her vocal range, as she sings with emotion and skill throughout the song. She recorded the song and her rendition is highly regarded. The lyrics of the song, however, are not optimistic. They depict longing and yearning for someone who is not present. The melody of the song, influenced by jazz, adds to the overall mood and feel of the song.