My first cat, Hendrix, disliked the bowed psaltery. He also once leapt from the ground to my forearm as I played the tin whistle (he did give fair warning by meowing several times and rolling on the floor before hand). My significant others' cats also didn't like the psaltery. I took that as a hint and didn't practice it around them. The cats do like the guitar, the lower register stuff the best. One really likes tunes played in CGCGCD tuning.