The full score of the Fantasie runs approximately 10-12 pages, depending on the publisher’s layout. The piece is continuous but breaks down into several contrasting sections.

| Symbol in PDF | Meaning | How to Execute | | :--- | :--- | :--- | | + above a note | Key click | Press the key without blowing air | | ø | Multiphonics (quarter-tone) | Use alternate fingering; hum a 5th above | | ♯̶ (slashed sharp) | Microtone | Lower the pitch by approx. 50 cents | | Glissando with no end note | Air noise only | Blow without engaging the reed fully | | Wave line over a rest | Circular breathing | Inhale through nose while cheeks push air |

Rasend means "raging" in German. This section requires circular breathing over 30+ seconds of a high trill. Many players looking for the specifically want to study this page because the notation includes a "wavy line" indicating continuous air with no break.

In the pantheon of solo clarinet repertoire, few works command the same awe, terror, and respect as . Composed in 1993, this twelve-minute monodrama has become a rite of passage for advanced clarinetists. Unlike the classical elegance of Carl Maria von Weber or the lyrical introspection of Brahms, Widmann’s Fantasie plunges the performer into a theatrical, acoustic exploration of the instrument’s extreme limits.

Do not blow air. Tap the complex rhythms (especially the 7/8 waltz) on your knees while humming the vocal line. Separately, practice the sung intervals using a piano.