“Mother’s Day is fast approaching,” the Radio Theatre Project press release tells us. Well, not that fast — it’s May 12, so you still have time to buy a card. But RTP will get you in the mood tonight with three short plays that pay humorous tribute to motherhood: Leon Kalayjian’s “Learning to Fly,” in which Grams exposes her wild side; Bara Swain’s “Can You Hear Me Now?,” which explores a mother/daughter relationship; and Donald Loftus’s “Eddie and Edna,” a melancholy tale of lingering motherly love.

That’s just the first half of the evening. The second half is less mom, more morgue: a light-hearted mystery by David Steven Rappoport called “Tea at the Morgue.”

As usual, the plays will all be performed in classic radio drama-style by actors at microphones, with live sound effects by Foley master Matt Cowley. Full disclosure: I have a small role. (Hint: I’m neither Eddie nor Edna.)

4/29, 7 p.m., The Studio@620, 620 First Ave. S., St. Petersburg, $15,  727-895-6620, studio620.org.