Piper is a man from Caprice Castle in Xanth. His talent is making music. He was first introduced in Well-Tempered Clavicle as a major character.
Piper is the boyfriend of Anna Molly and ex-lover of Pundora and Granola.
Piper was a fine but homely piper, then Demon Pundit made him handsome and able to use his music to summon and store puns in Caprice Castle. When the puns were lost, he was changed into a a gelatinous monster and cursed. His curse was that he had to find a beautiful princess to marry and stay in the castle with him. He had a music battle with Picka Bone for mastery of Caprice Castle. While he was a suiter of Harmony, she gave him a magic piccolo. He took the hypnotic gem. He is also known Music Monster.
Novels: Well-Tempered Clavicle, Luck of the Draw, Isis Orb
Human men and women will not have a species in their entries. Also, if the surname of the character is the character's species, it was dropped.
If the character is a child, it will be in the description. The child will more than likely be an adult by this time in the Xanth series.
Many species are single gender, so their entries will not mention it. The species are Fury, Muse, basilisk, cenmaid, cenmare, cockatrice, dryad, maenad, sand witch, sandman, and woodwife. Harpies and nymphs are usually female, and fauns are usually male; but there have been a few exceptions that are noted.
In some instances, I have made educated guesses on gender, species, and some birth years.