I would love to see some of the research myself. However, here are a few tips that you are going to try now to get you started.
1. Do a close reading of the lyrics of your songs. Placing close attention to the meanings, a good example of this would be some of the Underground Railroad songs that have hidden meanings.
2. Use complex vocabulary, particularly enforcing the music vocabulary where it crosses over with other subjects. Good examples of this would be pitch and volume.
3. Rhymes that you do in the early years that focus on beat can also lead to reading fluency. This can also be done with the lyrics of words.
These are just a few of the tips that I can think of off the top of my head. ad I am truly interested in things over the reading research where those crossover with music.