Is there terminology for vocals that do not use lyrics in certain parts?

1. What is it called to sing without words?
2. What are oohs and ahhs called?
3. What do you call a song without music?
4. What do you call music with only instruments?

What is it called to sing without words?

Although a cappella is technically defined as singing without instrumental accompaniment, some groups use their voices to emulate instruments; others are more traditional and focus on harmonizing. A cappella styles range from gospel music to contemporary to barbershop quartets and choruses.

What are oohs and ahhs called?

The word for "oohs" and "aahs" is "vocalise", which you can read about here: Is there terminology for vocals that do not use lyrics in certain parts?

What do you call a song without music?

A cappella refers to this; a song rendered without instruments and only with vocals.

What do you call music with only instruments?

user230. Up vote 4. Not exactly--instrumental music refers to a song that is designed to be played by only instruments. The original version of an instrumental song has no singer, it is played by instruments only.