News of this concert was published by Tagesbote aus Böhmen 8/1/1858 in a report noting ‘The second concert of Miss Mélanie Etterlin and Mr Josef Klein takes place today, the 8th January at 5 o'clock in the Konvikt Hall. The programme contains very interesting pieces, amongst which we would draw attention to Beethoven’s Sonata op.24, which Miss Etterlin on the pianoforte, accompanying Mr Klein on the Melophon, will perform, and the Elegie of Ernst with Introduction by Spohr in which Mr Klein will demonstrate how the Melophon is able to replace the violin even in the most delicate of pieces. Miss Rudloff and Messrs. Fektér and W. Blodek [Vilém Blodek] will participate in this concert. The favourable success obtained by the first concert of the concert-givers leads us to expect a great deal.’ The works performed by Fektér and Blodek were not specified; Blodek most likely participated as piano accompanist.

A review of this event, signed ‘-h.’, appeared in Tagesbote aus Böhmen 9/1/1858. The correspondent related that ‘Yesterday Miss Melanie Etterlin and Mr Josef Klein gave a second, poorly attended concert. Mr. Klein once again performed on the Melofon the violin part of Beethoven's Sonata for Piano and Violin Op.24. Apart from the fact that the violin compass does not fall into the best-sounding register of the instrument, the transposition of Classical chamber compositions to the Melofone is also problematic in that the latter instrument is less nuanced in weight of tone and expression. Moreover, it does not have the fluidity to perform accompaniment figures smoothly, as especially occur in the first sonata of the sonata. More favourable to the idiosyncracies of the instrument was the Fantastie by Artot and a transcription of Ernst's elegy. It is to be regretted that this handsome instrument and the great skill of Mr Klein was not demonstrated through dedicated compositions that reflected the character of the melofone. - The piano playing of the Miss Etterlin demonstrated, as in the past, itself to be more suited, more precise and more fluent, in the Classical style of Beethoven's Sonata, than in her - despite the moderate tempo - blurred and not faultless performance of the Presto from Weber's C major Sonata. In the zither performance. The highlight was unquestionably her two zither performances; the two Divertissements on Trovatore and die Zigeunerin often contain awkward passages for the zither, their rapid and clean execution being difficult to reconcile with the strong resonance of the zither tone... Miss Rudloff’s deeply moving and beautifully accented declamation of an extraordinarily extensive Ballade by Halm, die Glocke con Juisfair was certainlz the most brilliant number of the programme. Less happy was Mr Féker’s choice of Kücken’s Botschaft, which demands the most accomplished facility, and which the singer could only perform through unpleasantly forcing the high notes.’

Etterlin and Klein gave their first Prague concert on 30/12/1858 in the Konvikt Hall.