Az ismétlődő éjszakai zene zavaró.

Az is the Hungarian definite article, equivalent to the.

Hungarian has two forms of the definite article:

• a before a consonant sound
• az before a vowel sound

The next word is ismétlődő, which starts with a vowel, so Hungarian uses az ismétlődő ...

So:

• a ház = the house
• az alma = the apple
• az ismétlődő zene = the recurring music

The main noun is zene, meaning music.

Everything before it describes it:

• az = the
• ismétlődő = repeating / recurring
• éjszakai = nighttime / nocturnal
• zene = music

So az ismétlődő éjszakai zene is one noun phrase: the recurring nighttime music.

Ismétlődő functions as an adjective here, but it comes from a verb-like form.

It is built from ismétlődik, meaning to repeat / to recur.
The ending -ó / -ő often creates a participle-like adjective, roughly meaning:

• that is doing X
• that keeps doing X
• X-ing

So ismétlődő means something like:

• repeating
• recurring
• repetitive (depending on context)

In this sentence, it describes the music as something that keeps coming back.

Éjszaka means night or at night, but éjszakai is the adjectival form meaning:

• nighttime
• night
• nocturnal

The ending -i often turns a noun into an adjective in Hungarian.

Examples:

• iskola = school → iskolai = school-related
• nyár = summer → nyári = summer, summertime
• éjszaka = night → éjszakai = nighttime

So:

• éjszakai zene = nighttime music

Yes, that is completely normal.

In Hungarian, adjectives usually come before the noun, just like in English. So:

• ismétlődő describes the music
• éjszakai also describes the music
• both come before zene

So the structure is:

article + adjective + adjective + noun

That gives:

Az ismétlődő éjszakai zene

English does the same thing in many cases:

the recurring nighttime music

In Hungarian, the verb to be is often omitted in the present tense when the sentence is:

• third person
• singular or plural
• and the predicate is a noun or adjective

So instead of saying a full equivalent of is annoying, Hungarian simply says:

Az ismétlődő éjszakai zene zavaró.

Literally, this is more like:

The recurring nighttime music annoying.

But in natural English, of course, it means:

The recurring nighttime music is annoying.

Compare:

• A leves forró. = The soup is hot.
• A fiú magas. = The boy is tall.
• A zene zavaró. = The music is annoying.

Here, zavaró works as an adjective meaning:

• annoying
• disturbing
• bothersome

It comes from the verb zavar, meaning to disturb, to bother, or to confuse, depending on context.

The ending -ó / -ő can form a participle-like adjective from a verb. So zavaró is literally something like:

• disturbing
• bothering

In this sentence, it describes the music: the music is disturbing/annoying.

Sometimes, yes, because zavar can mean both disturb/bother and confuse depending on context.

But in this sentence, with éjszakai zene, the natural reading is:

• annoying
• disturbing
• bothersome

Not usually confusing.

So here zavaró is about the music causing irritation or disturbance, especially at night.

Because it uses the definite article az, it sounds like a specific, identifiable music/noise:

• the recurring nighttime music

So the speaker probably means some particular music that keeps being heard at night, not music in general as a concept.

If you were speaking more generally, you might phrase things differently depending on the exact meaning.

Yes, Hungarian word order is flexible, but changes usually affect emphasis.

The neutral version here is:

Az ismétlődő éjszakai zene zavaró.

This presents the subject first and then says something about it: the recurring nighttime music is annoying.

You could move words around in other contexts, but then the focus or emphasis would change. For a learner, this original order is the most straightforward and natural one to understand first.

A rough pronunciation guide:

• ismétlődő ≈ ish-MAYT-luh-duh
• éjszakai ≈ AY-sah-kah-ee
• zene ≈ ZEH-neh
• zavaró ≈ ZAH-vah-roh

A few helpful points:

• s in Hungarian sounds like English sh
• sz sounds like English s
• zs sounds like the s in measure
• ő is a long front rounded vowel; English does not have an exact equivalent

So ismétlődő begins with ish-, not is- as in English is.

Both can relate to repetition, but they are not exactly the same.

• ismétlődő = repeating, recurring, happening again and again
• ismételt often means repeated in a more result-oriented or formal sense

In this sentence, ismétlődő is a natural choice because it suggests music that keeps recurring at night.

So it feels more like:

• the recurring nighttime music

rather than just:

• the repeated nighttime music

The first sounds more natural in this context.