qǐng bǎ yuánchàng tiáoxiǎo, búyào qiēgē.

请 makes the request sound polite. In this sentence, it works like please in English.

So 请把原唱调小，不要切歌 is softer and more natural than just saying 把原唱调小，不要切歌.

A few notes:

• 请 is often placed before the main request.
• It is common in both spoken and written Mandarin.
• In casual speech, people may also leave it out if the situation is already friendly or informal.

把 introduces the object that is being affected by the action.

In 把原唱调小:

• 原唱 = the original vocal track
• 调小 = turn down / make lower
• 把 marks 原唱 as the thing being changed

So the structure is basically:

• 把 + object + verb/result

Here:

• 把 + 原唱 + 调小

This is a very common Mandarin pattern when you want to emphasize what happens to an object.

Compare:

• 把原唱调小 = turn the original vocals down
• without 把, the sentence would need a different structure and may sound less natural in this context

Mandarin often puts the object before the verb in a 把 sentence.

English:

• turn down the original vocals

Mandarin:

• 把 原唱 调小

Literally, it feels more like:

• take the original vocals and make them lower

This is one reason learners notice that the word order seems unusual. It is not random; it follows the 把-construction, which is very common when an action changes or handles a specific object.

原唱 literally means original singer or original vocal version, but in karaoke and music-player contexts it often refers to the original vocals in the track.

So in this sentence, 把原唱调小 means something like:

• turn down the original vocal track
• lower the volume of the lead/original singing

This is especially natural in karaoke situations, where someone wants to sing along but not completely skip the song.

Yes, 小 usually means small, but in combinations like 调小, it means make lower or turn down.

• 调 = adjust
• 小 = small / lower
• 调小 = adjust to a lower level

For sound, volume, brightness, and similar settings, Mandarin often uses adjectives like this after a verb:

• 调大 = turn up / make bigger
• 调小 = turn down / make smaller
• 调高 = raise
• 调低 = lower

So 调小 is very natural when talking about volume.

Yes, 调低 can also work.

The difference is small:

• 调小 often sounds very natural for volume, like turn it down
• 调低 emphasizes lowering the level

In many real situations, both are understandable. But for volume controls, 调小 is especially common in everyday speech.

This is because of tone sandhi.

Normally:

• 不 is fourth tone: bù

But when 不 comes before another fourth-tone syllable, it changes to second tone:

• 要 is fourth tone: yào
• so 不要 becomes búyào

This tone change makes pronunciation smoother.

A similar example:

• 不是 → búshì

But if the next syllable is not fourth tone, 不 usually stays bù.

不要切歌 means don’t change the song or don’t skip to another track.

Breaking it down:

• 不要 = don’t
• 切歌 = switch songs / skip songs / change the track

切歌 is quite colloquial and common in music-playing or karaoke contexts.

So the speaker is saying:

• lower the original vocals,
• but do not switch to a different song.

Not especially. 切歌 is more conversational and modern.

It is very common in everyday speech when talking about:

• karaoke
• music apps
• playlists
• someone controlling the songs at a party

In more formal or careful wording, people might say something like:

• 换歌 = change the song
• 切换歌曲 = switch songs

But in normal spoken Mandarin, 切歌 sounds very natural.

Mandarin often omits the subject when it is obvious from context.

So this sentence does not need to explicitly say:

• 你请把原唱调小，不要切歌

That would sound unnatural in most situations.

If you are speaking directly to someone, Mandarin often just gives the request without stating the subject, because the listener is already clear.

This is very common in commands, requests, and instructions.

Both can be used to mean don’t.

• 不要切歌
• 别切歌

Both are natural.

The difference is usually:

• 别 is often a little shorter and more casual
• 不要 can sound slightly fuller or more explicit

In many real-life situations, either one works. Here, 不要切歌 sounds perfectly natural.

Yes. If you want to sound gentler, you could add softening words such as:

• 请把原唱调小一点，不要切歌。
• 麻烦把原唱调小一点，不要切歌。
• 能不能把原唱调小一点，不要切歌？

These make the request sound more polite or less abrupt.

For example:

• 一点 = a little
• 麻烦 = sorry to trouble you / please
• 能不能...？ = could you...?

So if you are speaking to a stranger or want to be extra polite, these are good options.

The comma separates two connected requests:

1. 请把原唱调小
2. 不要切歌

It helps show that the speaker wants two things at the same time:

• lower the original vocals
• do not switch songs

In speech, there would usually be a short pause there. In writing, the comma makes that structure clearer.