Okay so I bought the used version of the game and it didn't come with a..

Ok here is the list:
1.Blue,he works at blue sky ranch,give him crops and stff you made.
2.Dan,He is walking aroun in the summer and fall,dont know what he likes.sorry
3.Joe,he works at woodys,give him fish any kind!
4.ray,he is found anywere(mostly by the river).,Give him any kind of fish.
5.Kurt,he works at woodys,dont know what he likes.sorry
6.Basil,He can be found in the mountain and by sunny lake,He likes flowers!
7.Alex,He works at the doctors office,Give him herb tea and plain herbs(herb tea is made by placing a herb in the pot you buy at the junk shop!!!
8.Bob,He is found mostly at the blue sky ranch,give him stuff you produced!
9.carl,he can be found once you unlock the bar,give him hot drinks.
10.Louis,He can be found walking around town,I don't know what he likes.Sorry
There you are, that is the list of boys in magical melody!
Hope I Helped!!!!!!

To help for the ones that weren't answered-

Dan: He likes fruits like blueberries and stuff.

Kurt: He likes ores, but I'd reccomend just giving him silver ore, gold ore and bronze ore, and not rare ore, because he doesn't seem to like it as much.

I'm not sure about Louis...

You can look on walkthroughs and stuff to find out all their likes, loves and favorites though.

Alex: Give him herbs and pontata roots.

Blue(I married him): He likes milk. Lots of milk.

Kurt: Clay, ore.

Joe: Fish

Ray: Big fish,

Dan: Berries, very berries, juice.

Louis: Ores, gems.

Basil: Plants, mostly flowers

Bob: Ores, milk.

Carl: Lots of sweet things

That's all, I'm sure. And, they won't marry you, you need to get the blue feather and propose to them.