PT - JOURNAL ARTICLE AU - Hoffmann, James TI - Computer-Aided Collaborative Music Instruction AID - 10.17763/haer.61.3.h161460535717722 DP - 1991 Sep 01 TA - Harvard Educational Review PG - 270--279 VI - 61 IP - 3 4099 - http://harvardeducationalreview.org/content/61/3/270.short 4100 - http://harvardeducationalreview.org/content/61/3/270.full SO - herp1991 Sep 01; 61