Il solista intona la prima strofa nella tonalità giusta.

Intona comes from the verb intonare.

In this sentence, intonare means something like:

• to intone
• to start singing
• to strike up
• to begin in the correct pitch/key

With music, it often suggests that someone begins a melody or verse with the right pitch. So Il solista intona... means the soloist starts singing the first verse.

Also, intona is:

• 3rd person singular
• present tense
• so it means he/she intones or the soloist intones

Because il solista is singular, intona is singular too.

Italian often uses the definite article more regularly than English.

So:

• il solista = the soloist

In English, sometimes you can drop the in certain contexts, but in Italian the article is usually required before a singular countable noun like this, unless there is a special reason not to use it.

Here, il is the masculine singular definite article used before most consonants:

• il cantante
• il musicista
• il solista

Because prima strofa means first verse, and la is the definite article: the.

So the structure is:

• la = the
• prima = first
• strofa = verse / stanza

Together:

• la prima strofa = the first verse

Italian normally keeps the article before nouns modified by ordinal numbers:

• il primo giorno = the first day
• la seconda volta = the second time
• il terzo capitolo = the third chapter

Also notice agreement:

• strofa is feminine singular
• so the article is la
• and prima is also feminine singular

This is a very common question because both can relate to poetry or songs.

• strofa = stanza or verse as a group of lines
• verso = line of poetry, or sometimes verse in a more technical/literary sense

In songs, strofa is often the natural word for verse in the sense of the section before the chorus.

So here:

• la prima strofa = the first verse of the song

If you said il primo verso, that would more likely mean the first line.

Nella is a combination of:

• in = in
• la = the

So:

• in + la = nella

That means:

• nella tonalità giusta = in the right key

This kind of combination is very common in Italian:

• nel = in + il
• nello = in + lo
• nella = in + la
• nei = in + i
• negli = in + gli
• nelle = in + le

Examples:

• nel libro = in the book
• nella casa = in the house
• nella tonalità giusta = in the right key

Here tonalità means key in the musical sense.

So:

• tonalità = key / tonality

Examples:

• in tonalità di do maggiore = in the key of C major
• cambiare tonalità = to change key

In this sentence, nella tonalità giusta means the soloist begins in the correct musical key.

Because giusta is describing tonalità, and adjectives in Italian usually agree with the noun they describe.

Here:

• tonalità is feminine singular
• so the adjective must also be feminine singular
• therefore: giusta

Compare:

• il tono giusto = the right tone
• la tonalità giusta = the right key
• i tempi giusti = the right tempos/times
• le parole giuste = the right words

So the ending changes to match the noun.

Because in Italian, many adjectives commonly come after the noun.

So:

• la tonalità giusta literally = the key right
• natural English = the right key

This noun + adjective order is very normal in Italian:

• un libro interessante = an interesting book
• una risposta corretta = a correct answer
• la tonalità giusta = the right key

Some adjectives can come before the noun in certain cases, sometimes with a change in style or meaning, but giusto often comes after the noun when it means correct/right in a factual sense.

Yes, intona is the present indicative.

Its basic form here is:

• il solista intona = the soloist intones / starts singing

Depending on context, the Italian present can sometimes correspond to different English forms:

• simple present: the soloist intones
• present progressive: the soloist is intoning / is starting the verse
• sometimes even a more general present: the soloist begins the first verse

In many teaching contexts, the most natural English translation would simply be:

• The soloist sings/starts the first verse in the right key.

So yes, it is present tense, but the best English rendering depends on context.

No. Here prima is an adjective meaning first.

That is because it directly modifies strofa:

• la prima strofa = the first verse

When prima means before, it usually works differently, often as an adverb or in expressions like:

• prima = before / earlier
• prima di = before

Examples:

• Prima mangio, poi esco. = First I eat, then I go out.
• Prima di partire = Before leaving

So in your sentence, prima definitely means first, not before.

This is the standard Italian word order:

• subject: Il solista
• verb: intona
• object: la prima strofa
• prepositional phrase: nella tonalità giusta

So the sentence is very straightforward and neutral.

Italian can change word order for emphasis, but the normal pattern here is:

• The soloist
  • sings/starts
    • the first verse
      • in the right key

That makes this a very useful example of basic sentence structure.

No. Solista can refer to either a male or female soloist.

The word itself often stays the same:

• il solista = the male soloist
• la solista = the female soloist

So the article tells you the gender here:

• il = masculine
• la = feminine

That means Il solista intona... refers to a male soloist, or at least uses the masculine form.

It depends on context.

• In songs, strofa is often best translated as verse
• In poetry, it can often be stanza

Since this sentence talks about a solista and tonalità, the context is clearly musical, so verse is the most natural choice.

So here:

• la prima strofa = the first verse

not usually the first stanza, unless you were deliberately using more literary language.