Untitled (layout for duration of "Silberne Frequenz" in Münster, left page); Untitled (notes on duration of "Silberne Frequenz" in Münster, right page)

Brown and blue crayon on paper

Graphite on paper

Black ink on white laid paper

Graphite and watercolor on paper

Black marker on paper

Colored crayon on paper

Silverpoint

Colored marker on paper

Graphite on paper

Graphite on off-white wove paper

Graphite on paper

Graphite on paper