This covers me, that erst had the blue sky

Musically, the piece could be interpreted as a slow, introspective ballad with a melancholic melody that conveys a sense of solitude and longing. The use of a solo instrument, such as a piano or violin, would emphasize the intimate, introspective nature of the piece. Soft, understated chords in the accompaniment would create a sense of atmosphere, while the melody would build gradually to a climax, reflecting the arrival of the ships. Ultimately, the piece would end on a dreamy, nostalgic note, reflecting the fleeting nature of hope and the longing for something greater.