Brass Quartet - Intermediate - Digital Download SKU: 2S.4251133766677 By Seiler und Speer. By Bernhard Speer and Christopher Seiler. Pop. Score. 21 pages. Soundnotation #4251133766677. Published by Soundnotation (2S.4251133766677). This music book contains the original sheet music of the Song - Ham kummst - by Seiler und Speer for Brass quartet (2 trumpets, horn, trombone). Medium difficulty in A minor.