Kalau mau baca teknik bermain keyboard

http://books.google.co.id/books?id=oYj74560Pp8C&pg=PA3&lpg=PA3&dq=teknik+bermain+keyboard&source=bl&ots=eoNvfDQGiA&sig=XEYPUccuI5tvp0h_wbgWU3Rb_j4&hl=id&sa=X&ei=HKz6UMrmJMXwrQeY44GwCA&sqi=2&redir_esc=y