Cicada Songs are a song of love... and sometimes distress
Some don't like cicadas, but I find them fascinating. I like the sound they make. It reminds me of past springs and summers and makes me be in the moment when I hear them.
While it really is 17 years between swarms (for most cicadas in the eastern half of North America), there are a few that come out early and late. Plus different swarms can overlap ranges, making it seem like the cicadas come at a more frequent cycle. Makes sense genetically and biologically, you want different swarms just in case one gets wiped out.