Add a Jingle/theme after a tech is sent

Hello everyone

I’m trying to play a sound/mp3 after a tech is sent. Like some HC cards. I copy the code lines that triggers the sound and added a “power” on the powermods.xml file with the new coding, but the jingle does not play.

I know the audio file works because I replace an existing jingle with mine and the game plays the file no issue. What I’m missing? Is there another file beside the “power” and “techtree” ones needed for this to work? Will post the codes on further edit.