·     The so-called “flap-staffs” are shown in the iconography of YAX Lintel 9, Lintel 33, and Stela 11, and also recounted in the glyphic text (YAX Lintel 9 A4-B1-B2, YAX Lintel 33 D-E-F, and YAX Stela 11 K1b-K2a). They are also shown in the iconography of YAX Lintel 50, Stela 16, and CAY Panel 1, but not mentioned in the glyphic text.

·     AT-E1168-lecture15.t0:23:42-24:43 (2015) explains that this dance was performed during the Summer Solstice, perhaps to try to invoke a brief break in the rain, useful for agricultural activities: Jasaw Chan K’awiil: “K’awiil in the Sky Clears” or “K’awiil Clears in the Sky”. Once again, it’s a general act – jasaw is “to clear up”. We know that there is actually a kind of dance called jasaw chan, and it falls near the Summer Solstice – in the period of what we call canícula, in the rainy season. So there’s a month of May when the rains come, and then usually in July there’s a brief break in the rain. And it lasts for a few weeks, and it’s very important, because sometimes you want to do a second plant[ing], you want to do a few other things, and you really want this to happen. So presumably, Maya kings danced a special “Sky Clearing Dance” to make sure that there’s a brief period of sun that you need for agricultural activities. That’s the only ritual that we know of that has some agricultural connotations in the Classic Maya culture. // So this king was K’awiil, [i.e.] the Lightning that Clears the Sky. So you get the idea, right? The sky is dark and it’s raining – so you see a bolt of lightning and it clears the sky.

·     Looper-TMotMFD (2003) and Looper-TBLG (2009) give lots more detailed information.