Vocal jazz songs are popularized by famous jazz artist such as Frank Sinatra, Nat King Cole, Billie Holiday, and Diana Krall. It again gains popularity by contemporary artists like Michael Buble, Norah Jones and Amy Winehouse. Such melodies are quite appealing to hear and compile for personal use.
To download vocal jazz songs, may it be the original or a contemporary version is quite easy. The first thing to consider is the availability of the song you are trying to find. It always starts with typing the song or artist in the search window. You may start at available search engines. Or you may try to find it in specific sites that offer these types of songs. It will be easier if you both know the artist and the title of the vocal jazz song.
Some sites have a specific category for vocal jazz songs. Where the artists are listed and their songs are categorized according to the albums they are included. Others have song listing in alphabetical order, either by the song title or by the artists.
These downloadable vocal jazz songs are available in mp3 and ringtone versions. Some are available for free, by signing up for a free account in their websites. Usually those with a larger selection of songs are the ones who offer it for a reasonable price. And a part of the sale goes to the respective song artist.
It's also a good idea to go and find the official website of a certain vocal jazz artist. From there, they make it available for reasonable price. In those sites you may even find other information and interesting stuffs about other vocal jazz artists. Watch out for available links that might also lead you to your search.