* Ultimate-Guitar.com: This website offers a vast collection of chords, tabs, and lyrics for songs from a wide range of genres. You can find duet songs by searching for "duet" or "two-part harmony" in the song title or artist field.
* Songsterr.com: Songsterr provides chord sheets and tabs for various songs, including duets. You can find duet songs by searching for "duet" or "two-part harmony" in the search bar.
* MusicNotes.com: MusicNotes offers a selection of sheet music for duets, including popular songs and classical pieces. You can search for duet sheet music by genre or instrument.
2. Music retailers:
* Music & Arts: Music & Arts stores carry a variety of sheet music, including duets. You can browse their selection in-store or check their online catalog.
* Barnes & Noble: Barnes & Noble stores also carry a selection of sheet music, including duets. You can browse their selection in-store or check their online catalog.
* Sheet Music Plus: Sheet Music Plus is an online retailer of sheet music, including duets. You can search for duet sheet music by genre, instrument, or keyword.
3. Public domain music collections:
* The Mutopia Project: The Mutopia Project is a collection of free sheet music that includes a selection of duets. You can browse their collection online or download it as a PDF.
* The IMSLP Petrucci Music Library: The IMSLP Petrucci Music Library is a digital library of public domain sheet music, including a variety of duets. You can browse their collection online or download it as a PDF.
* The Choral Public Domain Library: The Choral Public Domain Library is a collection of free choral music, including duets. You can browse their collection online or download it as a PDF.
4. Books and Magazines: Search popular resources such as Hal Leonard books and magazines for duet songs. These often include a variety of genres and skill levels.
5. Music Streaming Platforms: explore different music streaming platforms like Spotify, Apple Music, and Amazon Music. Some platforms offer curated playlists and recommendations for duet songs.