It’s important to keep social factors in mind here, think about incentives and the structure of the music industry—who is more likely to be signed by scouts? Who are the scouts and is there any bias in their selection?

Here’s a relevant article looking at gender differences among top 50 charting performers from 1960 to 2008. Note that they find that, gender aside, 71% of songs are about sex or love across the sample AND in each decade (1960, 1970, 1980, 1990, 2000). Obviously this is limited to popular music indicating minimally that songs about sex or relationships tend to chart well—you can be sure talent scouts (who are trying to make money for their labels) are aware of this. Also this can’t address your further question about songwriters (most top artists do not write their own songs, and commercial songwriters are incentivized to write lyrics about sex and love because these songs chart well).

It would be interesting if someone could do a similar study focused on songwriters (though commercial songwriters are not always acknowledged on the songs which might make this difficult). It would also be neat to perform a similar analysis on a group of artists who are less likely to be fiscally motivated to make music than top 50 artists.

Here’s the part of the discussion I found most relevant, “Our analysis of lyrical content of the Top 50 songs from even numbered years between 1960 and 2008 found that dating and sexual content is quite common and is partly consistent with cultural notions of gender-differentiated sexual activity. We found that references to romantic relationships appear in the vast majority of songs, and the word "love" appears in slightly more than half of all songs and is most typically used to refer to romantic love (i.e., being in love), while references to intercourse (and other orgasm producing activities) and sexual objectification appeared in a sizable minority of songs. Content varied by performer's sex, decade, and genre, with sexual (vs. dating) content proportionally more common among male performers, in more recent decades, and in the rap genre. However, we note that male performers outnumbered female performers by a substantial margin (2.5:1), so raw counts for males were higher for almost all cells in the analysis, even when inferential tests indicated the content was more common in female performers' lyrics.
Broadly speaking, gender differences in our results suggest the portrayal of dating and sexuality in popular music lyrics is quite similar to the portrayal in other media formats (Clawson 2005; Herd 2015; Kunkel et al. 2005; Taylor 2005; Ward
1995) and consistent with cultural expectations and stereotypes (Arnett 2002; Smiler 2013; Tolman 2002). In particular, women were more likely to sing about dating and love, and men were more likely to objectify others, particularly women.
Men were also more likely to sing about sex; this difference did not reach statistical significance but given the substantially greater number of songs by male performers, the raw counts are notably different. Women and men did not systematically vary in how they used the word love or the explicitness of their sexual references.
Raw counts told a story about men that is contrary to cultural stereotypes. Our data showed that men sang about dating in two-thirds of the songs we analyzed and love in half of our sample songs, more than doubling the number of times women addressed these topics. Moreover, male performers referenced dating relationships approximately three times more often than they referenced sex.”

Man, I got these dope looking bacon wrapped cheese stuffed jalapenos and idk how that was supposed to work. No e of those cool at the same time. You either got raw bacon, or a cooked to mush jalapeno with a tiny bit of burnt cheese on the bottom from where it had boiled out while the bacon was cooking.

I’m still wounded by this experience. Thanks for listening.