How to work with melodic dictation
The module plays a short sequence of notes and you reproduce it by selecting what you heard. The first levels use three notes within a fifth; later the melodies get longer and the pool of notes wider.
This is the most demanding exercise in this area, because it requires pitch recognition, memory and order at the same time. Expect slower progress than with intervals, and do not read that as going backwards.
Sing the melody back before you answer. What you can sing, you have retained; what you cannot sing has already gone. That single habit decides whether the module works for you.
Why melodic dictation works
Melodies are not stored as chains of absolute pitches but as patterns of distances and as relationships to a tonic. That is why you recognise a song even when it is played in a different key. Ear training exploits exactly that mechanism: you are not learning to recognise one particular C but the function of a note within a key.
Relative solmisation makes this explicit. Each degree gets a syllable, do for the tonic, then re, mi, fa, so, la, ti. Anyone who can sing a melody in syllables has understood it functionally and can move it into any key. The system is more than two hundred years old and still the most effective method for melodic hearing.
Working memory for note sequences holds about three or four elements in untrained listeners and considerably more in trained ones, because they form groups. An eight-note melody becomes manageable as soon as you hear it as two groups of four. That grouping is what actually grows with practice.
From practice
It is best to always start with melodies that end on the tonic. The final note gives the ear a reference point from which you can reconstruct backwards. Melodies ending on the third or fifth are considerably harder and belong to a later stage.
A good additional exercise is writing things down. Take paper and note the melody you heard as scale degrees, for example 1-3-5-3. That forces analysis and shows whether the error was in hearing or in remembering.
If a melody simply will not stick, shorten it. Listen to the first three notes only, reproduce them, then the first five. That incremental extension is how professional musicians handle longer dictations too.
Common mistakes
The most frequent mistake is getting the direction right and the distance wrong. That is a good sign: the contour is there, the fine discrimination is not yet. Practise the interval module specifically before continuing here.
The second mistake is missing the first note. Many people only start concentrating from the second note and thereby lose the reference point. Listen deliberately before the start and hold on to the first note.
The third mistake is practising too long. Melodic dictation is tiring, and tired listening trains nothing. Ten focused minutes are worth more than forty with fading attention.