Though there is an option to "Share" on Spotify, it appears that you can only send the link of Spotify music to other Spotify users. You can’t just do something like "Have you heard this song?" with the Spotify song you want share so that you friends can listen to it directly, no need to sign up to Spotify. So if there is a method to share your Spotify songs with your friend via email that would be great.
In response to users’ requirements, Spotify Music Converter for Windows version 1.1.0 has been released, which keeps the original functions including download and save Spotify music in common MP3, AAC, FLAC and WAV format at higher conversion speed with lossless output quality, and adds the ability to directly burn your Spotify playlist to a CD, and share your favorite songs with friends via email.
Launch Spotify Music Converter for Windows. Click "+" button, then you will see a pop-up window which indicates you to copy and paste the playlist link from Spotify. You can copy and paste the link on the URL window and click "Parse". Then you can click "OK" to finish adding tracks.
Click the Setting button on the top-right to choose output format. In Convert settings, you can choose output format (MP3, AAC, FLAC or WAV), output quality (High 320kbps, Medium 256kbps, Low 128kbps). In the output settings, you could change the output folder as you prefer.
When finish customization, click "Convert" button to start downloading. After downloading, you can get offline Spotify music by clicking the "Converted" button on the left side or go to the output folder you've set before.
Find out the converted Spotify nusic files and upload to the email as the attachment. Finally, you can share all of your Spotify music via email with your friends!
After completing the above steps, your friends will receive the DRM-free Spotify music, and enjoy them without signing up to Spotify.
Convert Apple Music, iTunes M4P Music, or Audiobook to MP3, AAC, WAV and FLAC.