Cevap kâğıdını boş bırakacağına favoriyi dinle.

It has two main parts:

• cevap kâğıdını boş bırakacağına = instead of leaving the answer sheet blank
• favoriyi dinle = listen to the favorite

A useful breakdown is:

• cevap = answer
• kâğıt = paper / sheet
• cevap kâğıdı = answer sheet
• cevap kâğıdını = the answer sheet (as a definite direct object)
• boş bırakmak = to leave blank
• bırakacağın-a = instead of your leaving
• favori-yi = the favorite (direct object)
• dinle = listen (singular imperative: listen!)

So the structure is basically:

[Instead of doing X], do Y.

Here, -acağına means something like instead of doing... or rather than doing...

In bırakacağına, the form is:

• bırak- = leave
• -acak / -ecek = future/participle element
• -ın = 2nd person singular possessive
• -a = dative

So bırakacağına is literally something like to your leaving or rather than your leaving. In natural English, that becomes:

• instead of leaving
• rather than leave

In this sentence, it clearly refers to you, because the main verb dinle is also directed at you.

No. This is important.

The form -acağına / -eceğine can have different meanings depending on context.

In this sentence, it means instead of because the sentence contrasts two actions:

• leaving the answer sheet blank
• listening to the favorite

But in another sentence, the same form might mean something else. For example:

• Geleceğine inanıyorum. = I believe that he/she will come.

So you should learn this as a pattern that can mean instead of in the right context, not as a one-meaning suffix in every sentence.

Yes.

A very similar sentence would be:

• Cevap kâğıdını boş bırakmak yerine favoriyi dinle.

That also means instead of leaving the answer sheet blank, listen to the favorite.

The difference is mostly in style and nuance:

• -mak yerine is a very straightforward instead of doing
• -acağına often sounds a bit more pointed, contrastive, or mildly critical, especially in advice or commands

So bırakacağına can sound a little like:

• Rather than just leaving it blank, listen to the favorite.

Because it is the definite direct object of bırakmak.

In Turkish, a specific/directly identified object usually takes the accusative ending.

First you have the compound noun:

• cevap kâğıdı = answer sheet

Then, because it is the object of boş bırakmak, it becomes:

• cevap kâğıdını = the answer sheet

So the sentence is talking about the answer sheet, not just an answer sheet in a vague sense.

Because of consonant softening.

The dictionary form is:

• kâğıt = paper

But when a vowel-initial suffix is added, the final t often softens to d:

• kâğıt → kâğıdı

Then with the accusative after the possessed form, you get:

• kâğıdını

This kind of change is very common in Turkish:

• kitap → kitabı
• ağaç → ağacı
• renk → rengi
• kâğıt → kâğıdı

Because cevap kâğıdı is a noun compound.

In Turkish, compounds like answer sheet, car door, school bag, etc. are often built with the second noun taking a form that looks like the 3rd person possessive ending.

So:

• cevap = answer
• kâğıt = paper
• cevap kâğıdı = answer sheet

This is normal Turkish compound structure. It does not necessarily mean his/her answer sheet here. It is just how the compound is formed.

Then when you add the accusative, it becomes:

• cevap kâğıdı
  • -nı → cevap kâğıdını

It literally means to leave empty or to leave blank.

• boş = empty / blank
• bırakmak = to leave

So:

• kapıyı açık bırakmak = to leave the door open
• ışığı yanık bırakmak = to leave the light on
• cevap kâğıdını boş bırakmak = to leave the answer sheet blank

This is a very normal Turkish pattern:

object + adjective/state + bırakmak

Because dinlemek takes a direct object in Turkish.

In English, we say listen to something, so English speakers often expect a dative-type form. But Turkish uses the verb differently:

• müziği dinlemek = to listen to the music
• onu dinlemek = to listen to him/her
• favoriyi dinlemek = to listen to the favorite

So favoriyi is in the accusative, not the dative.

Also, because favori ends in a vowel, Turkish adds a buffer y before the accusative ending:

• favori
  • -i → favoriyi

Yes.

Favori can be used as:

• an adjective: favori oyuncu = favorite player
• a noun: favori = the favorite / the favored one

In Turkish, especially in contexts like sports, betting, competition, entertainment, or casual speech, favori as a noun is very natural.

So in this sentence, favoriyi is functioning as a noun: the favorite.

Because that is how the 2nd person singular imperative is usually formed in Turkish.

• dinlemek = to listen
• dinle! = listen!

So dinle is a command addressed to one person: listen!

Compare:

• dinle = listen! (singular, informal)
• dinleyin = listen! (plural or polite)
• dinlesin = let him/her listen

So the sentence is directly addressing you.

The subject is understood, not stated.

In Turkish, subjects are often omitted when the verb already makes them clear.

Here the sentence is addressed to you:

• dinle = you listen
• bırakacağına also matches that same understood you

So the full sense is:

• Instead of your leaving the answer sheet blank, you should listen to the favorite.

But Turkish normally leaves that sen unstated.

Yes, it is normal.

Turkish usually puts the main finite verb at the end, and it also tends to put subordinate clauses before the main action.

So this order:

• Cevap kâğıdını boş bırakacağına favoriyi dinle.

fits normal Turkish structure well.

Inside the first part, Turkish also puts the object before the verb:

• cevap kâğıdını = the answer sheet
• boş bırak- = leave blank

So the sentence flows in a very Turkish way:

[object + descriptive element + verb-clause] + [object + main verb]

A few things matter here:

• â is not a completely different letter, but it can signal a slightly longer vowel and a more fronted/palatalized k
• ğ is usually not pronounced like a hard English g
• the t in kâğıt becomes d before the vowel-initial suffix

So kâğıdını is pronounced roughly like:

• kaa-uh-duh-nuh

That is only an approximation for English speakers, but the key points are:

• do not say a hard g
• do not keep the final t
• the ı sound is the Turkish vowel with no exact English equivalent

It sounds fairly direct, because dinle is a plain imperative.

That does not automatically make it rude, but it is definitely more direct than a softened version.

For example:

• favoriyi dinle = direct command
• favoriyi dinleyin = more polite or plural
• lütfen favoriyi dinleyin = clearly polite

Also, bırakacağına can add a slightly critical or corrective tone, as if the speaker is saying:

• Instead of doing that, do this.

So the overall feel is fairly firm and corrective rather than especially gentle.