What are voicings in jazz?
A chord voicing is just a way of altering the order of and intervals between the notes in a chord. So instead of playing CMaj7 as a block chord (C E G B) we could reorder the notes and play C B E G - which spans two octaves (called 'open harmony'). This is considered more sophisticated and 'jazzy'.
What are voicings in piano?
Piano voicing is the process of adjusting the density of the felts covering the hammers striking the string to produce a warmer or brighter tone.