Koncert skončil, tedy jdeme domů.

Here tedy means so, therefore, or thus. It links the first clause to the second:

• Koncert skončil = the concert ended
• tedy jdeme domů = so we are going home

In this sentence, tedy sounds a bit more neutral or slightly formal than everyday English so.

The comma separates two clauses:

• Koncert skončil
• tedy jdeme domů

Czech often uses a comma before linking words like tedy, especially when they connect one complete idea to another. It helps show the logical pause: the concert ended, therefore we are going home.

Skončil is the past tense, masculine singular form of the verb skončit.

It agrees with koncert, which is a masculine noun in Czech. So the verb has to match it:

• koncert = masculine
• skončil = masculine singular past

If the subject were feminine, the form would be different, for example skončila.

Because koncert is grammatically masculine inanimate. In the Czech past tense, the verb agrees with the gender and number of the subject.

So:

• masculine singular: skončil
• feminine singular: skončila
• neuter singular: skončilo
• plural: forms like skončily or skončili, depending on the noun

Since koncert is masculine singular, skončil is the correct form.

Jdeme is present tense: we are going or we go.

That works naturally because the sentence means something like:

• The concert has ended, so we’re going home now.

The first action is completed in the past (skončil), and the second action is happening now or immediately afterward (jdeme). Czech uses the present tense here just like English often does in So we’re going home.

Because Czech usually does not need a subject pronoun when the verb already shows who is doing the action.

• jdeme already means we go / we are going

So my jdeme domů is possible, but my is usually omitted unless you want emphasis, contrast, or clarity.

For example:

• My jdeme domů, oni zůstávají. = We are going home, they are staying.

Domů means home in the sense of toward home.

So:

• jdeme domů = we are going home

This is different from a noun phrase like dům meaning house. Here domů functions more like an adverb of direction.

A useful contrast:

• jsme doma = we are at home
• jdeme domů = we are going home

Because Czech distinguishes between location and direction.

• doma = at home, staying in that place
• domů = homeward, toward home

So:

• Jsme doma. = We are at home.
• Jdeme domů. = We are going home.

In your sentence, there is movement, so domů is required.

Sometimes, but not always.

In this sentence, tedy is much closer to so / therefore / thus than to then. English then can be temporal, meaning after that, but tedy here shows a conclusion or result.

So the best sense is:

• The concert ended, so we’re going home.

not primarily

• The concert ended, then we’re going home.

Yes. Some common alternatives are:

• tak = so
• takže = so / so that / therefore
• proto = therefore / that is why

For example:

• Koncert skončil, tak jdeme domů.
• Koncert skončil, takže jdeme domů.
• Koncert skončil, proto jdeme domů.

They are similar, but not identical in tone:

• tak is very common and conversational
• takže is also common and natural
• proto is a bit more formal or explicit
• tedy can sound neutral, logical, or slightly formal

Not completely. Czech word order is quite flexible, but different orders sound slightly different in emphasis.

The given sentence:

• Koncert skončil, tedy jdeme domů.

is natural and clear.

You could also hear:

• Koncert skončil, jdeme tedy domů.

This puts tedy a little more inside the second clause. Both are possible, but the original version emphasizes the logical connector a bit more clearly.

Skončit is a perfective verb. That means it presents the action as completed.

So Koncert skončil means:

• The concert ended
• The concert has come to an end

This is why it fits well here: the ending is a finished event, and that finished event causes the next action, jdeme domů.

The imperfective partner is končit, which would describe the process or repeated ending in some context, not the completed result in the same way.

It is mostly neutral, though tedy can sound a little more deliberate or slightly more formal than everyday spoken tak.

In casual speech, many speakers might more naturally say:

• Koncert skončil, tak jdeme domů.

But your sentence is perfectly correct and natural, especially in writing or in slightly more careful speech.