with a porphyritic structure. Phenocrysts (about 30%) are mainly feldspar and the matrix (about 70%) is mainly felsic rock and biotite (< 0.5%) with a rust-colored surface upon iron precipitation and ...
Can include rhythm, melody, harmony, dynamics, texture, timbre and structure. of the music such as their melody close melodyDifferent pitched notes played one after another making a tune., ...