| A | B |
| harmony | two or more notes played or sung at the same time. |
| unison | all play or sing the same thing together |
| chorus/refrain | a part of a song that repeats with the same words and music |
| verse | a part of a song where the music stays the same but the words change. It usually tells a story. |
| round/canon | a song that is sung with singers starting at different times. |
| accompaniment | music that supports or is background for a melody. |
| a cappella | without instrumental accompaniment. Just voice(s). |
| staccato | short detached notes |
| legato | smooth connected notes |
| pitch | how high or low a note is. |