The Dark World Theme from A Link to the Past is nearly the same melodie and you can find it here:
http://www.zeldacapital.com/sheet.php
and here:
http://www.ninsheetm.us/sheetmusic.php?series=TheLegendofZelda
Hyrule Field sheet music can be purchase through many sheet music retailers. It can also be purchased through online department stores.
I find this website useful. It's written for piano, but I use it for my flute so it might work with trumpet. Just scroll down until you see the hyrule field music. http://herbalcell.com/blog/free-sheet-music/legend-of-zelda-twilight-princess Hope this helped :D
Sheet music can be viewed online at several different places. Some of these places include Online Sheet Music, Sheet Music Plus, and Sheet Music Direct.
You can buy legal copies of this song at Sheet Music Plus or Musicnotes.com.
One can visit the website Music Room for the biggest selection of sheet music available. Other websites one can find sheet music on are Piano Street, Sheet Music Plus and Virtual Sheet Music.
Some sheet music will have the grade listed,but not all,mostly sheet music for the piano.
there is no sheet music
Josh's anime sheet music collectionorIchigo's sheet music
You can buy the sheet music legally from Sheet Music.com or Music Notes.com.
Try a music shop, or an online sheet music retailer, such as musicroom.com, who also sell sheet music for dowload.
Sheet Music Plus
Piano Sheet Music Online offers free piano sheet music. SheetzBox also offers free online sheet music for pianos. One can also go to their local music store and they will have a variety of sheet music available for sale.