Alfred J. Swan writes that a singer now and then inserts an odd measure into a song spontaneously resulting in the flexibility of the rhythm in Russian folksong. Song no. 2 displays this trait when Shostakovich inserts one additional beat in each of the first three measures of melody A, resulting a melody A’ that has a different …show more content…
18: Melody A’ in B major sung by the choir at the end of the song no. 2 mm 180-190.
Another melody in the song no. 2, melody B (fig. 19) appears together with the melodies A and A’ in the middle of the song in mm. 88-99 and mm. 128-139. Contrary to the melodies A and A’, the orchestra and the melody B have the same mode, C# Aeolian. Therefore, a direct modulation in fourth relationship occurs between melodies A and A’ in G# Aeolian and melody B in C# Aeolian, while a modulation using a common chord G# minor occurs in the accompaniment as seen in fig. 20.
Fig. 19: Melodies B in C# Aeolian sung by the choir in mm 88-99 of the song no. 2.
The major-minor modes fluctuation occur in the harmony where the tonality shifts from major to minor modes and vice versa. Swan explains that the fluctuation between major and minor modes is one of the characters of Russian traditional folksong. Taruskin further mentions that the seemingly unstable interplay of relative major and minor keys reflecting what ethnomusicologists call the ‘mutable mode’ (peremennïy lad) of genuine Russian folklore. In the oratorio, only song no. 2 shows this trait as shown in fig.