La1sher Well this isn't about songs that you necessarily listen to whilst reading. Though it can be songs that you listen to while reading it could also be songs that remind you of the novel. Independent of reading the novel you may have a song out there that you listened to and could imagine the scene of the novel you read previously, unfolding just because it fit so well, like soundtrack music.
Many webnovels have these time-skips or training periods, or action fights that last a whole chapter or two. There could be songs that go well with that, picture Eye of the Tiger playing in the background of Martial Arts Master when he is doing his running and early morning exercises for a good month. Or maybe there is a Taylor Swift love song that explains the f**k'd up romance in some of these novels lol.