My degu standstill!

[Grace]

I try to let Kedama and Maple listen to music,suddenly they stop playing games and "standstill" and try to find out what the sound is.
Do anyone know what do they mean standstill ?
By the way,Kedama likes girl's voice like "Heaven't" and Maple is interested in electronic music and boy's voice ,and their same like is "My stupid heart"

[teemu]

Degus usually stop and listen if they hear a noise they are not sure about. In the wild, they need to be very careful due to predators, so any strange noise could mean danger. Something in the music may have spooked them, or it could be that when the music is playing they can't hear other noises as well, so they try to listen more carefully.

[bouncy]

My oldies used to love classical, but not more modern stuff. The delinquents liked Star Wars for a while, but I think it's because they thought R2D2 was a degu.