Invocationes for trumpet in C and organ (op. 68a, 1978)
I. De profundis, II. In te Domine speravi, III. Non confundar in aeternum
Trumpet in C, organ
Duration: 22 minutes
Gerd Zapf / Franz Lehrndorfer
Title: Invocationes f. trumpet in C and organ (1978) - composed on commission for the organ concert series in the cathedral of our dear lady in Freiburg i. Brsg. - Length: 38 pages - Dated: I. 16 May 78, II. 30.6.78, III. 22 July 78 - Location: Bavarian State Library, Munich
Schott Musik International ED 6814 ISMN 979-0-001-07227-4
Hummel uses ecclesiastical lamentations to formulate an expressive and deeply felt statement of faith by combining a tonal, albeit harmonically and dynamically highly contrasting trumpet part with a counterpart that exploits all the modern possibilities of organ sound (focussed fortissimo - cluster-like agglomerations - wide-ranging carpets of sound - fading pianissimo swells). This gripping work reconciles the listener to the abundance of the usual chorale arrangements.
Invocations:
I. "From the depths I cry to you, Lord..."
The 1st invocation is determined by the tonal material of the chorale: " Aus tiefer Not schrei' ich zu dir", initially in short motifs, each of which takes on musical developments and which interpenetrate each other. Towards the end of the movement ("im goldenen Schnitt"), the chorale melody is quoted - transposed upwards by a whole tone line by line. The melody loses itself again in the call motif.
II "In you, Lord, I place my hope"
In the 2nd invocation, the solo instrument repeats the speech accent of the Latin title on one note. This means of expression is repeated seven times during the movement and thus creates a clear structure. The melodic and contrapuntal intermediate sections are also characterised by the linguistic style of "In te domine speravi" .
III "Let me not be put to shame for ever"
The 3rd invocation begins with an 8-note solo trumpet call, which subsequently recurs in variations and leads into a solo trumpet cadenza. This is followed by a passacaglia over the 8-note call motif, in which the main ideas of all three movements are taken up once again.
The work, which was commissioned by the Freiburg Minster Organ Concerts and premiered there in 1978, fades away in the extreme piano.
Bertold Hummel