What does chromatic runs mean?

A chromatic run is a sequence of notes that progress up or down the scale by half steps, or semitones. This type of run is often used in classical music to create a sense of tension or suspense, and can also be used to add melodic interest to a piece. Chromatic runs can be played on any instrument, but are particularly common in piano and violin music.

Here is an example of a chromatic run:

```

C, C♯, D, D♯, E, F, F♯, G, G♯, A, A♯, B

```

In this example, the chromatic run starts on C and progresses chromatically up to B. Each note in the run is a half step higher than the previous note.

Chromatic runs can also be played in the opposite direction, from high to low. In this case, the chromatic run would start on B and progress chromatically down to C.

Chromatic runs are a fundamental technique in music theory and composition, and can be used to add a variety of effects to a piece of music.