"Texure" in music descibes the melodic and harmonic relationships and the density of the simultaneous different musical components.
There are different textures in music:
-MONOPHONIC MUSIC: It is the simplest texture. There is no harmony and there is only one line of tune. Medieval music is always monophonic.
-POLYPHONIC MUSIC: It's a more complex texture. There is more than one tune plyed at the same time. It was developed during the Renaissance period.
-HOMOPHONIC MUSIC: It is a texture where the lines of musci move at (more or less) the same time. Melodies and chords are good examples of this.
OTHER WAYS TO VARY TEXTURE
SOLO: Only one voice or instrument
DUET: A 2-part piece
TRIO: A 3-part piece
QUARTET: A 4-element piece
UNISON: All voices or instruments playing the same notes
TUTTI: All instruments or voices playing at the same time
DOUBLING: One part playing exactly the same notes as another
DESCANT: One part runs higher than the main melodies