Rezonans solistin sesini güçlendirdi.

The sentence follows the usual Turkish pattern Subject + Object + Verb.

• Rezonans = the subject
• solistin sesini = the object
• güçlendirdi = the verb

So the structure is:

• Rezonans = resonance
• solistin sesini = the soloist’s voice
• güçlendirdi = strengthened / amplified

Turkish very often puts the verb at the end, so this word order is completely normal.

Because solistin means of the soloist or the soloist’s.

The base noun is solist = soloist.
Adding -in makes it genitive case, which is used for possession:

• solist = soloist
• solistin = the soloist’s

So here, solistin sesi literally means the soloist’s voice.

This is a very common Turkish pattern.

The base word is:

• ses = voice / sound

Because the voice belongs to the soloist, Turkish adds a possessive suffix:

• sesi = his/her/its voice

Then, because this possessed noun is the specific direct object of the sentence, it also takes the accusative case:

• sesini = his/her voice (as the definite object)

So:

• solistin sesi = the soloist’s voice
• solistin sesini = the soloist’s voice, as the thing being affected by the verb

The n in sesini is a buffer consonant between the possessive suffix and the accusative ending.

In Turkish, possession is usually shown in a double-marked way:

• the possessor gets genitive
• the possessed noun gets a possessive suffix

So:

• solistin sesi = the soloist’s voice

Literally, this is something like:

• soloist-of voice-his/her

This is just how Turkish normally builds possessive noun phrases. It may feel repetitive to an English speaker, but in Turkish it is standard.

güçlendirdi is the past tense, 3rd person singular form of güçlendirmek.

• güç = strength / power
• güçlendirmek = to strengthen, to make stronger, to amplify

Then:

• güçlendirdi = strengthened / made stronger / amplified

The -di part is the simple past tense.
The subject here is rezonans, so the full meaning is Resonance strengthened/amplified the soloist’s voice.

Because Turkish normally prefers SOV order:

• Subject + Object + Verb

So:

• Rezonans = subject
• solistin sesini = object
• güçlendirdi = verb

This is the most neutral and natural word order in Turkish.

English usually prefers SVO:

• Resonance strengthened the soloist’s voice

But in Turkish, putting the verb last is the default.

Yes, Turkish word order is flexible, but changing it usually changes emphasis or focus, not the core meaning.

For example:

• Rezonans solistin sesini güçlendirdi.
  Neutral, standard order.

• Solistin sesini rezonans güçlendirdi.
  This can put more focus on rezonans.

• Güçlendirdi rezonans solistin sesini.
  Grammatically possible in some contexts, but much less neutral and more marked or poetic.

So the original sentence is the most natural one for ordinary usage.

Turkish does not have a definite article like English the.

So nouns often appear without any separate word for the or a/an.
Definiteness is understood from:

• context
• word order
• case marking, especially the accusative

In this sentence, sesini is definite/specific because it has the accusative marking. So it naturally corresponds to the soloist’s voice, not just a voice.

No, rezonans is a loanword, and it is very similar to English resonance.

That makes it easier to recognize. Turkish uses many international words in science, music, medicine, and technology, and rezonans is one of them.

A few pronunciation points are especially useful:

• ü is like the German ü or French u
• ç is pronounced like ch in church
• ğ in Turkish is usually not pronounced like a hard g; it often lengthens or smooths the preceding vowel

So güçlendirdi is approximately:

• gooch-len-deer-dee, but with Turkish vowels, not English ones

Also remember that Turkish spelling is very regular, so once you learn the sound values of the letters, pronunciation becomes much easier.

Yes. That is a very good natural translation.

• solistin sesi = the soloist’s voice
• also naturally: the voice of the soloist

English usually prefers the soloist’s voice, but both are correct ways to understand the Turkish phrase.