De-tuning

within a single piano string course.

 

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            Experimenting with the use of left pedal depress/release when the una corda string(s) is tuned to a slightly different pitch than the other string(s) in the same course, gives the possibility of changing timbre/pitch both suddenly and gradually.

In general, the same little motif of 3 tones/keys have been tested in different dynamics (forte and piano) and in 3 different ranges; middle range, very low range and the very high range.

The efficiency of the una corda pedal often varies from piano to piano. Ultimately, when the una corda pedal is depressed, one should hear only the pitch from the una corda-string, but often one can hear a little resonance from the other strings in the course. The timbral differences between una corda and tre corda are nevertheless clearly audible.

una corda_edited.jpg

Una corda vs tre corde.

            Una corda, forte

            Tre corde, forte

            Una corda, piano

            Tre corda, piano

The una corda-string is raised by an 8th-tone.

Low range.  

High range. 

Middle range. 

Middle range. 

The una corda-string is raised by a 6th-tone.

Gradually changes between una corda and tre corde.

The una corda-string is raised by an 8th-tone. 

Low range.  

Loud, then repeated softly 

Loud 

Soft 

Middle range. 

Loud 

Soft 

High range. 

Micro-cluster

Tre corde. Middle range.

            forte

            piano           

Arpeggio and chords. 

The una corda-string is raised by a quarter tone. 

The una corda-string is raised by a quarter tone, and the middle string in the course is raised by an 8th-tone. 

The una corda-string is raised by an 8th-tone, and the middle string in the course is raised by a 16th-tone.

Ebow

The una corda-string is raised by an 8th-tone. 

Middle range. Una corda. 

Repeated keyboard attacks.

Single

keyboard attack. 

© 2015 Sanae Yoshida