Do you have itunes?
You can import the songs into your itunes library and then sync your music to your ipad.
Connect ipad to your computer
Then within itunes ---> click on music and on the right hand side choose sync music and selected playlists, artists, albums and genresYou can then choose what songs you want to sync
see this picture https://support.apple.com/library/content/dam/edam/applecare/images/en_US/mac_apps/itunes/osx-elcapitan-itunes12-4-device-music-tab.png