Quel genre de musique écoutes-tu principalement quand tu travailles?

Quel is an interrogative adjective and must agree in gender and number with the noun it modifies.

• genre is a masculine singular noun → so you use quel.
• If it were musique directly (feminine singular), you’d say quelle musique écoutes-tu ?
• Masculine plural: quels films aimes-tu ?
• Feminine plural: quelles chansons écoutes-tu ?

So: quel genre (m.sg.) de musique… is grammatically required here.

Yes, that is correct and natural, but the nuance changes slightly:

• Quel genre de musique… ? = What kind/genre of music…? (rock, jazz, classical, etc.)
• Quelle musique… ? = What music / which music…? (more general, or maybe asking for specific artists, playlists, or songs, depending on context).

Both are correct; quel genre de musique makes it explicit that you’re asking about the type of music.

After nouns like genre, type, style, French often omits the article before the second noun:

• un genre de musique
• un type de film
• ce style de vêtements

Here, de musique is a fixed structure after genre and does not take la.
If you were talking about music in general as an object of the verb, you’d say écouter de la musique (listen to music), but with genre, it’s genre de + noun without the article.

Écoutes-tu is verb–subject inversion, a formal way to ask a question in French. The hyphen is mandatory in this structure:

• Tu écoutes de la musique. (statement)
• Écoutes-tu de la musique ? (question, formal/standard)

You have three common ways to form questions:

1. Inversion (formal/written)

   • Quel genre de musique écoutes-tu… ?

2. Est-ce que (neutral/standard)

   • Quel genre de musique est-ce que tu écoutes… ?

3. Intonation only (very common in speech, more informal)

   • Quel genre de musique tu écoutes… ? (rising intonation)

All are understood; inversion is just the most “textbook” style.

Yes, this is colloquial spoken French and very common in conversation:

• Grammatically, traditional rules prefer inversion or est-ce que.
• In everyday speech, many people drop inversion and simply raise their intonation:
  Quel genre de musique tu écoutes principalement quand tu travailles ?

In writing (especially formal writing), you should prefer:

• Quel genre de musique écoutes-tu principalement quand tu travailles ?
  or
• Quel genre de musique est-ce que tu écoutes principalement quand tu travailles ?

In French, écouter is a direct transitive verb, which means it takes its object directly, without a preposition:

• écouter de la musique = to listen to music
• écouter la radio = to listen to the radio
• écouter quelqu’un = to listen to someone

So you never say écouter à or écouter de in the sense of “listen to”. The de you see in de la musique is part of the partitive article (“some music”), not a translation of “to”.

Yes, French adverbs like principalement are flexible, but some positions sound more natural than others. All of these are possible (with slightly different emphasis):

• Quel genre de musique écoutes-tu principalement quand tu travailles ?
  (default, very natural)
• Quel genre de musique écoutes-tu quand tu travailles principalement ?
  (odd: it sounds like you mainly work at that time)
• Principalement, quel genre de musique écoutes-tu quand tu travailles ?
  (emphasis on mainly, more rhetorical/structured)
• Quand tu travailles, quel genre de musique écoutes-tu principalement ?
  (also natural; emphasis on the when clause)

Most neutral and common: … écoutes-tu principalement quand tu travailles ?

You can, but there is a nuance:

• principalement = mainly, for the most part (quite neutral, factual).
• surtout = mostly / above all / especially (can sound a bit more emotional or emphatic).

Examples:

• Quel genre de musique écoutes-tu principalement quand tu travailles ?
  → strictly about what you listen to most of the time.
• Quel genre de musique écoutes-tu surtout quand tu travailles ?
  → similar meaning, but can suggest “especially/above all when you work.”

Both are correct, and in casual speech, surtout is very common.

All three refer to time, but with slight differences in usage:

• quand tu travailles

  • Very common, neutral.
  • Can mean “when you work” in general, or “whenever you’re working”.

• lorsque tu travailles

  • More formal/ literary, similar meaning to quand.
  • Often used in written or more careful speech.

• pendant que tu travailles

  • Emphasizes “during the time that you are working”.
  • Focuses more on simultaneity.

In this sentence, quand tu travailles is the most natural everyday choice.

You need to change both the subject pronoun and the verb form:

• Quel genre de musique écoutez-vous principalement quand vous travaillez ?

If you keep inversion, remember:

• écoutes-tu → informal tu form
• écoutez-vous → formal vous form (singular or plural)

With est-ce que:

• Quel genre de musique est-ce que vous écoutez principalement quand vous travaillez ?

French present tense often covers both English simple present and present continuous. So:

• quand tu travailles can mean:
  • “when you work (as a habit, generally)”
  • or “when you are working (whenever you happen to be working)”

Context usually clarifies that this sentence is about a habit:
What kind of music do you mainly listen to when you work (as a general habit)?

Yes, that’s perfectly correct and often stylistically nice:

• Quand tu travailles, quel genre de musique écoutes-tu principalement ?

The meaning doesn’t change; you just put emphasis first on the time situation (when you work). The comma is usually written in this order.