On melody and sight singing
Below you can download two texts on melody and sight singing. If you understand this, you are able to sing every tonal melody!
In addition, you can download the 'School of Sight_Singing' of Giuseppe Concone and 1000 systematically organized exercises of Nikolai Michalovich (for singing or dictation!).
Reinier Maliepaard - Basic Materials Melody Part 1 (basic)
Reinier Maliepaard - Basic Materials Melody Part 2
Download the method of Giuseppe Concone - School of Sight Singing (ZIP)
Download the exercises of Nikolai Michalovich Laduchi (PDF)