The last song Komarov ever listened to was Tenderness " (Russian: Нежность) by by Aleksandra Pakhmutova, with lyrics by Nikolai Dobronravov and Sergey Grebennikov. (The link below is the cover of the song that popularised it, tumblr Is stupid and won't let me add audio files)
-"The Earth is empty without you
How can I survive for a few hours?"
This song first debuted in a musical festival in late 1965, it wasn't a success to say the least, only a few cosmonauts actually appreciated it, because they were the ones who requested the poets and songwriters to write something about Antoine de Saint-Exupéry. (Yuri Gagarin even danced with the writers of the song during the festival)
-"It's just empty on Earth without you
And you are flying and the stars
are giving their tenderness to you"
However, this song clearly found a place in Vladimir Komarovs heart, reportedly, this was the final song he chose to listen to before departing to the launchsite to board Soyuz 1, and he even asked Gagarin to thank the authors of the song on his behalf.
-"The Earth is empty without you
If you can, come back soon"
The song is about loss, and more specifically, losing a lover you'll never be able to see again. This song is most widely known as Yuri Gagarins favourite song. It became tradition for cosmonauts to listen to this song before launch after the Soyuz 1 tragedy. It really got popularised during the 1967 red carnation festival, only a few months after Vladimir Komarovs death. (Red carnations are also the flowers cosmonauts traditionally bring the fallen cosmonaut heroes before they launch)