Rabbi Ze’ev Kraines, originally from California and educated at Cornell University and University of South Africa, has a website with useful musical mp3 files. Rabbi Kraines, a Rav at Ohr Somayach Sandton in Johannesburg, South Africa, has put together a listing called “Kraines Family Sings” of mp3 files of singing Jewish melodies which has three major components: Around the Shabbos Table, Around the Sheva Brochas Table, and Around the Year.
https://sites.google.com/a/ohrsandton.com/files/kraines-family-sings