Έχει μεγάλο ταλέντο στη μουσική.

Because Greek usually drops subject pronouns when they are not needed.

The verb έχει already tells you the subject is third person singular, so it can mean:

• he has
• she has
• sometimes it has

Greek would only add αυτός or αυτή if the speaker wanted emphasis, contrast, or extra clarity.

So Έχει μεγάλο ταλέντο στη μουσική. naturally means He/She has great talent in music / for music.

Έχει is the 3rd person singular form of the verb έχω, meaning to have.

So:

• έχω = I have
• έχεις = you have
• έχει = he/she/it has

In this sentence, έχει means has.

Modern Greek does not have an indefinite article exactly like English a/an.

So where English says:

• He has a talent
• He has great talent

Greek can simply say:

• Έχει ταλέντο.
• Έχει μεγάλο ταλέντο.

There is no separate word corresponding to English a here.

Because μεγάλο has to agree with ταλέντο.

The noun ταλέντο is neuter singular, so the adjective must also be neuter singular:

• μεγάλος = masculine
• μεγάλη = feminine
• μεγάλο = neuter

Since it is ταλέντο, the correct form is μεγάλο ταλέντο.

It is in the accusative singular because it is the direct object of έχει.

Greek direct objects usually go in the accusative:

• Έχει ταλέντο. = He/She has talent.

In this particular word, ταλέντο, the nominative and accusative forms look the same, which is very common with neuter nouns.

στη is a contracted form of:

σε + τη

It means in / at / to the, depending on context.

So:

• στη μουσική literally = in the music
• more naturally in English here = in music or for music

This contraction is extremely common in Greek.

Greek uses the definite article more often than English.

So even when English says:

• in music
• at school
• with patience

Greek may naturally use an article.

Here, στη μουσική is the normal Greek way to express the area or field of music. You should not translate the article word-for-word every time.

Prepositions do not match one-to-one across languages.

Greek often uses σε in expressions about a field, area, or domain of ability. So:

• ταλέντο στη μουσική = talent in music / talent for music

English prefers for music, but Greek naturally says στη μουσική.

So this is best learned as a set expression: έχω ταλέντο στη μουσική.

Yes. Greek word order is more flexible than English.

The sentence Έχει μεγάλο ταλέντο στη μουσική. is a neutral, natural order.

But Greek could also rearrange parts for emphasis, for example:

• Στη μουσική έχει μεγάλο ταλέντο.
  This puts more focus on music.

The original version is the best one to learn first.

A simple pronunciation guide is:

EH-hi meh-GHA-lo ta-LEN-do sti moo-see-KEE

A few helpful notes:

• χ in έχει is not an English h exactly; it is a Greek sound, like a soft, breathy h/kh sound.
• γ in μεγάλο is a voiced Greek sound, not exactly like English g in all contexts.
• The stress falls on:
  • Έχει
  • μεγάλο
  • ταλέντο
  • μουσική

In Modern Greek, capital letters normally keep their accent marks if the word is accented.

So:

• έχει
• Έχει

Both are correct, depending on whether the word starts a sentence or not.

This is normal Greek spelling.

Yes.

• Έχει ταλέντο. = He/She has talent.
• Έχει μεγάλο ταλέντο. = He/She has great talent / a lot of talent.

So μεγάλο adds emphasis and makes the statement stronger. It does not just mean physically big here; it means great, considerable, impressive.