Oscar Geier wrote these 12 technical studies for mature advanced and virtuosic players. Each study is a page in length and focuses upon a variety of challenging techniques such as: asymmetrical meters, complex rhythms, wide leaps in disjunct passages, flexibility, fingering speed challenges, double and triple tonguing, and upper register playing up to high E above the staff. Written in playable keys with one etude in Gb major. 12 pages. -pc