Piano chords sharps and flats

1. Are there sharp and flat chords?

Are there sharp and flat chords?

Sharps and flats are two groups of notes that differ from natural ones (C, D, E, F, G, A and B). They appear as suffixes to natural notes: A sharp is one semitone higher in pitch, while a flat is one semitone lower. ... There are three sharps and two flats in-between the naturals, starting with a C# one fret up from the C.