La obra maestra atrae al público.

Yes. Obra maestra is a fixed expression meaning masterpiece.

It is feminine because the main noun is obra, and obra is feminine in Spanish. That is why you get:

• la obra
• obra maestra

The adjective matches the noun in gender and number.

Also, maestra here does not mean female teacher. In this expression, it means something like master or excellent.

Because obra is a feminine singular noun, so it takes the feminine singular definite article la.

Spanish articles have to agree with the noun:

• el libro
• la obra
• los libros
• las obras

Since the subject is one specific masterpiece, la is the correct article.

Atrae is the third-person singular present form of atraer.

The subject is la obra maestra, which is singular, so the verb must also be singular:

• atraer = infinitive, to attract
• atrae = it attracts
• atraen = they attract

So:

• La obra maestra atrae... = The masterpiece attracts...

Because a + el always contracts to al in standard Spanish.

So:

• a + el público → al público

This is a basic contraction rule:

• Voy al museo
• Hablo al director
• Atrae al público

Because público refers to people, and Spanish often uses the personal a before a direct object that is human or treated as a group of people.

So here:

• La obra maestra atrae al público

The masterpiece is attracting the public / the audience, which is a human group, so a appears.

Then, because a + el = al, you get al público.

Because público is a collective noun. It is grammatically singular, even though it refers to a group.

This is similar to English words like the audience, the public, or the crowd.

So Spanish treats it as singular:

• el público
• un público
• mucho público

If you wanted a plural idea, you would usually use a different word or phrase, depending on context.

Spanish uses definite articles more often than English does.

In this sentence, both nouns are being presented as definite:

• la obra maestra = a specific masterpiece
• el público = the public / the audience as a known group

English sometimes drops the where Spanish keeps it, but in this sentence the articles sound natural in both languages.

Here it can mean either the public or the audience, depending on context.

• If you are talking about art, culture, or general reception, el público often means the public
• If you are talking about a performance, exhibition, or event, it can feel more like the audience

So público is a broad word for a group of people receiving, watching, or responding to something.

The accent mark shows where the stress goes: PÚ-bli-co.

It also helps distinguish this word from other forms spelled similarly:

• público = public / audience or public as an adjective
• publico = I publish
• publicó = he/she/you formal published

So the accent is both a pronunciation guide and, in some cases, a meaning marker.

This is the most neutral and standard word order:

• subject + verb + object

So:

• La obra maestra = subject
• atrae = verb
• al público = object

Spanish word order is more flexible than English, so it can change for emphasis, but this version is the most straightforward for learners.

For example, a more emphatic version could be:

• Al público lo atrae la obra maestra

But the original sentence is the clearest and most neutral form.