Research (2) Music--Instruction and study (2) Music (2) Education (2) Art (2) Música--Enseñanza (2) Educación (2) Investigación (2) Arte (2) Música (2) éducation (2) Teenagers (1) Time (1) Teleology (1) Teaching (1) Students (1) Strategy (1) Motivation (Psychology) (1) Life (1) Justification (Christian theology) (1) Interest (1) Improvisation (Music) (1) Expression (1) Education, Secondary (1) Education, Compulsory (1) Attachment and garnishment (1) Expresión (1) Improvisación (Música) (1) Enseñanza obligatoria (1) Interés (1)