Related Clues:

• Planet - sea god
• Write up melody for movement from 'The Planets'
• Brother of Pluto
• *'The Mystic'
• Planet farthest from the Sun, now
• Roman god of horses
• Tune pen into the Roman god
• Brother of Jupiter and Pluto
• Sea god — outer planet
• Ruler of the sea
• One distanced from The Sun has to write up notes
• Writer's come up with a melody for god
• Roman god backing exercise in northern air
• God, planet
• Sea god; planet