Exactly when in January 1905 it became apparent that this song could not be performed by a tenor at the concert on 29 January is not known, but this change in plan meant that a new medium-voice orchestral version (score and parts, and piano-vocal score) had to be completed so that it could be rehearsed and sung by a baritone. At the beginning of the month Mahler's conducting schedule at the court opera was not particularly busy, although on 12 January the piano rehearsals for a new production of Das Rheingold commenced (from Hofopernspielplan):

Date	Performance	Rehearsals
03.01.1905	Die Hochzeit des Figaro
08.01.1905	Fidelio
12.01.1905		Das Rheingold (piano rehearsal)
13.01.1905		Das Rheingold (piano rehearsal)
14.01.1905		Das Rheingold (piano rehearsal)
17.01.1905		Das Rheingold (orchestra rehearsal)
18.01.1905		Das Rheingold (orchestra rehearsal)
19.01.1905		Das Rheingold (orchestra rehearsal)
21.01.1905		Das Rheingold (Generalprobe)
22.01.1905	Fidelio
23.01.1905	Das Rheingold
25.01.1905	Das Rheingold
28.01.1905	Das Rheingold	Mahler Liederabend (Generalprobe: 14:30)

Table 1

Mahler was used to finding time for the preparation of fair copies of his scores during the opera season so it may be that Mahler himself prepared [AF5m] from scratch. However, if the song was re-assigned to Weidemann relatively late in the month, Mahler may have engaged a copyist (Zöphel?) to prepare a transposed version that he then revised (quite substantially, not least its orchestration) and from which a new set of orchestral parts was produced.

In this context it is notable that the only currently known manuscript orchestral score of this medium-voice version of the song was probably not prepared in Vienna, but in Leipzig (see ACF5m). This may indicate that the editorial team at Kahnt believed that the score Mahler supplied was, for some reason, not usable as a printer's copy, and so commissioned a new copy, which was indeed used as the printer's copy for the engraving.