Sotto

Jimi’s guitar plays flat against the major chord, giving a strange, almost discordant effect. Mitch on drums is behind the bass sotto.

Source: wiktionary

Wolowitz: Énchanté, mademoiselle. Howard Wolowitz, Cal Tech department of applied physics. You may be familiar with some of my work – – it’s currently toodling around the surface of Mars. Penny: Hi. Penny. Wolowitz: You smell wonderful. What is that scent you’re wearing? Penny: It’s called b.o. Wolowitz: Ah. Hence the shower, of course. Leonard, where have you been hiding this one? She’s charming. Sheldon: (SOTTO, TO LEONARD) Oh, he’s good.

Source: wiktionary

Playing against the effect, Wood plays single sotto lines with a variation on the key that sustains a minor mode against the finely tuned feedback effects stroked in pinks against the upper canvas.

Source: wiktionary

‘Assuming these board scores are accurate reflectors of true capacity in this case,’ Academic Affairs says, his high voice serious and sotto,[…]

Source: wiktionary