A szomszéd zajong, majd lehalkítja a zenét.

A is the Hungarian definite article, like the in English.

• a szomszéd = the neighbor
• a zenét = the music (here in object form)

Hungarian has two forms of the definite article:

• a before a consonant: a szomszéd
• az before a vowel: az ember

So here a is used because both szomszéd and zene begin with consonants.

Neither specifically. Szomszéd is gender-neutral.

Hungarian does not usually mark grammatical gender the way English does with he/she or nouns like actor/actress. So a szomszéd can mean:

• the neighbor (male)
• the neighbor (female)

You need context if gender matters.

Zajong means to make noise, to be noisy, or to make a racket.

It comes from zaj, meaning noise. So A szomszéd zajong means the neighbor is being noisy / making noise.

It is an intransitive verb here, so it does not take a direct object.

Hungarian often expresses ideas with a single verb where English uses a longer phrase.

So:

• zajong = makes noise / is noisy / is making noise

Also, Hungarian present tense can cover several English present meanings depending on context:

• simple present: makes noise
• present continuous: is making noise

The exact English translation depends on the situation.

Here majd means something like then, after that, or later.

So the sentence gives a sequence:

1. A szomszéd zajong = the neighbor is noisy / makes noise
2. majd lehalkítja a zenét = then turns down the music

A very important point: majd can also sometimes suggest the future in other contexts, but here its main job is to link the two actions in time.

Lehalkítja can be broken down like this:

• le- = down
• halk = quiet
• halkít = make quieter, lower, turn down
• -ja = third person singular definite verb ending

So lehalkítja means he/she turns it down or turns down the ...

In this sentence, the thing being turned down is a zenét = the music.

Because Hungarian verbs have two main conjugation patterns:

• indefinite conjugation
• definite conjugation

Here the verb has a definite object:

• a zenét = the music

Because the object is definite, Hungarian uses the definite conjugation, so:

• lehalkítja = turns it/the ... down

Compare:

• Lehalkít valamit. = He/she turns down something.
  (indefinite object)
• Lehalkítja a zenét. = He/she turns down the music.
  (definite object)

This is one of the most important grammar points in Hungarian.

Because zenét is the accusative form, used for the direct object.

• base form: zene = music
• object form: zenét = music (as the thing affected by the verb)

Hungarian usually marks the direct object with -t.

With nouns ending in -a or -e, that final vowel often lengthens before the suffix:

• zene → zenét
• alma → almát

So a zenét means the music as the object of lehalkítja.

Yes, Hungarian word order is flexible, but it is not random. It changes emphasis and information structure.

This sentence has a fairly neutral order:

• A szomszéd = topic / what we are talking about
• zajong = first action
• majd lehalkítja a zenét = next action

So the sentence sounds like a straightforward description of what happens.

Other word orders are possible, but they would shift the focus or style. Hungarian often puts the most important or contrastive element in a special position before the verb.

So this version is a natural, neutral way to say it.

Yes. Hungarian verbal prefixes often separate depending on sentence structure.

In your sentence, the prefix stays attached:

• lehalkítja

But in other patterns it may move:

• A szomszéd nem halkítja le a zenét. = The neighbor does not turn down the music.
• Lehalkítja a zenét. = He/she turns down the music.
• A zenét halkítja le. = It is the music that he/she turns down.

So verb prefixes in Hungarian are very important, but they are not always stuck directly onto the verb.

Yes, both verbs are in the present tense:

• zajong
• lehalkítja

Hungarian can use the present tense for:

• a general description
• a vivid narrative
• a sequence of actions

So the sentence can sound like:

• The neighbor is making noise, then turns down the music.
• The neighbor makes noise, then turns down the music.

The exact English tense depends on context, but the Hungarian itself is perfectly normal.

Because the sentence contains two coordinated parts:

• A szomszéd zajong
• majd lehalkítja a zenét

The comma helps separate the two actions. In English, punctuation might vary depending on style, but in Hungarian this kind of comma is normal when linking clauses like this.

So the comma signals a pause and makes the sequence clearer.