Després del concert, la cantant saluda el públic i la banda li regala flors.

Because de + el contracts to del in Catalan.

So:

• de el concert → del concert

This is very common:

• del llibre = of/from the book
• del carrer = of/from the street

In the sentence, Després del concert means After the concert.

Després means after / later. When it introduces what comes after, it normally uses de:

• després de classe = after class
• després del concert = after the concert

So the pattern is:

• després de + noun
• després de + infinitive in other contexts

Yes. Cantant is a common-gender noun, so the word itself stays the same and the article shows the gender:

• el cantant = the male singer
• la cantant = the female singer

So in this sentence, la cantant clearly means the female singer.

Catalan uses definite articles very naturally, often more than English does. In this sentence, the speaker is referring to specific people/things in the situation:

• la cantant = the singer involved in this concert
• el públic = the audience there
• la banda = the band involved

English sometimes drops articles where Catalan keeps them, but here the works naturally in both languages.

Because públic is a singular collective noun. It refers to a group of people as one whole, much like the audience in English.

So:

• el públic = the audience / the public

Even though it refers to many individuals, the noun is grammatically singular.

Here el públic is the direct object of saluda (greets). In Catalan, direct objects usually do not take the preposition a.

So:

• saluda el públic = she greets the audience

This is different from Spanish, where you often see a personal a. Catalan uses a much less for direct objects.

They are both in the present indicative:

• saluda = greets

• regala = gives / presents

  More specifically:

• saluda comes from saludar
• regala comes from regalar

This present tense can describe:

1. a general/habitual action, or
2. a vivid narrative scene

So the sentence sounds like a description of what happens in that moment: After the concert, the singer greets the audience and the band gives her flowers.

Li is an indirect object pronoun meaning to him / to her / to it.

In this sentence, it refers back to la cantant:

• la banda li regala flors = the band gives her flowers

Literally, you can think of it as:

• the band gives flowers to her

So li = to her here.

Yes. That is also correct.

• La banda regala flors a la cantant = The band gives flowers to the singer

In Catalan, it is very common to use the indirect object pronoun even when the full noun is also stated. So you may hear:

• La banda li regala flors a la cantant

That kind of doubling is normal in Catalan.

Because weak object pronouns in Catalan usually go before a conjugated verb.

So:

• li regala = gives her / gives to her

This is the normal position:

• em parla = speaks to me
• li dona un llibre = gives him/her a book

Catalan pronoun placement often feels different from English, where pronouns usually come after the verb in expressions like gives her flowers.

Because flors here is being used in a general or indefinite sense: flowers, not the flowers.

Compare:

• regala flors = gives flowers
• regala les flors = gives the flowers (specific flowers already known)

So the sentence simply means the band gives her some flowers, not a particular previously mentioned set of flowers.

It has two main clauses joined by i (and):

1. Després del concert, la cantant saluda el públic
2. i la banda li regala flors

So the structure is:

• time expression: Després del concert
• clause 1: subject + verb + direct object
• clause 2: subject + indirect object pronoun + verb + direct object

More specifically:

• la cantant = subject
• saluda = verb
• el públic = direct object

and then:

• la banda = subject
• li = indirect object
• regala = verb
• flors = direct object

Not exactly. Regalar usually means to give as a gift or to present something to someone.

So:

• regala flors = gives flowers (as a gift) / presents flowers

In English, gift exists as a verb, but it is less neutral in many contexts than Catalan regalar. A more natural English translation is usually give or present.

You can make it explicit with a la cantant:

• La banda li regala flors a la cantant

or without the pronoun:

• La banda regala flors a la cantant

Both mean The band gives flowers to the singer, but using li is very natural and often preferred in real Catalan.

Yes, in a sentence like this, i simply means and:

• la cantant saluda el públic i la banda li regala flors

It joins the two actions together. Very straightforward here. Just note that Catalan i is pronounced like English ee.