لا بالراديو ولا بالتلفزيون سمعنا هالاغنية قبل.

It means neither ... nor ....

Here it connects the two phrases بالراديو and بالتلفزيون, so the idea is:

• لا بالراديو ولا بالتلفزيون = neither on the radio nor on TV

This is a very common Arabic pattern:

• لا X ولا Y = neither X nor Y

The prefix بـ is a preposition. In different contexts it can mean in, with, by, through, or on.

With media like radio and TV, it often means on / through / via.

So here:

• بالراديو = on the radio
• بالتلفزيون = on TV / on the television

Also, Arabic usually keeps الـ here, even where English often says just on TV without the.

Because ر and ت are sun letters.

When الـ comes before a sun letter, the l sound of الـ is not pronounced, and the next consonant is doubled instead.

So:

• بالراديو is pronounced roughly bir-rādyo
• بالتلفزيون is pronounced roughly bit-tilfizyōn

The spelling stays the same, but the pronunciation changes.

هالاغنية means this song.

In Levantine, a very common colloquial way to say this + noun is هالـ + noun.

So:

• هالاغنية = this song

This is the everyday Levantine equivalent of the more formal MSA هذه الأغنية.

You may also see or hear:

• هالأغنية
• هالغنية

Those are all normal colloquial ways of expressing the same idea.

سمعنا is the past tense, 1st person plural form of سمع.

So it means:

• سمعنا = we heard

In Levantine pronunciation, it is often said something like smeʿna.

Even if English might use have heard or had heard in a similar sentence, Arabic often uses the simple past together with قبل to express that meaning.

This word order adds emphasis.

By putting لا بالراديو ولا بالتلفزيون first, the speaker highlights the two places/media before giving the verb. It is a bit like saying in English:

• Neither on the radio nor on TV had we heard this song before.

So the sentence sounds more focused or marked than a plain, neutral statement.

Because the negative meaning is already being carried by لا ... ولا ... at the beginning.

The fronted phrase:

• لا بالراديو ولا بالتلفزيون

already sets up the negative frame: neither on the radio nor on TV.

In a more straightforward colloquial sentence, many speakers would use ما with the verb, for example:

• ما سمعنا هالأغنية قبل، لا بالراديو ولا بالتلفزيون

So the version you were given is more emphatic/focused, while a ما + verb version is more plain and direct.

Here قبل means before / previously.

So:

• سمعنا هالاغنية قبل = we heard this song before / we’ve heard this song before

In the full sentence, because of the negative structure, the meaning is that this had not happened before in either of those places.

Also note: قبل can mean ago in other contexts, but here it clearly means before / previously, not ago.

Not always.

In careful pronunciation, you may hear something close to al-ughniyye. But in everyday Levantine, speakers often simplify it, and the word can sound more like ghniyye.

That is why you may come across forms like:

• هالاغنية
• هالأغنية
• هالغنية

So if the spoken form sounds shorter or smoother than the spelling suggests, that is completely normal.

Yes. A very common, more straightforward version would be:

• ما سمعنا هالأغنية قبل، لا بالراديو ولا بالتلفزيون

You may also hear different prepositions with media words depending on the speaker or region, so forms like عالراديو or عالتلفزيون can also occur.

So the sentence you were given is understandable and natural, but it has a slightly more emphatic word order than the plainest everyday version.