Irama dan tempo itu berubah.

In Malay, demonstratives such as ini and itu usually come after the noun they modify.

So:

• buku itu = that book
• rumah ini = this house

In your sentence, Irama dan tempo itu means that rhythm and tempo or sometimes more naturally the rhythm and tempo, depending on context.

This post-noun position is completely normal in Malay.

In this sentence, itu applies to the whole noun phrase Irama dan tempo.

So Irama dan tempo itu is understood as:

• that rhythm and tempo
• or the rhythm and tempo

It does not normally mean only the tempo unless the structure is changed in some clearer way. Because irama dan tempo forms one coordinated phrase, itu at the end can refer to the whole set.

Berubah means to change or to become different.

It is an intransitive verb, meaning the subject itself undergoes the change.

So in this sentence:

• Irama dan tempo itu berubah = the rhythm and tempo changed / are changing / change

The sentence focuses on the fact that the rhythm and tempo themselves are different now.

The prefix ber- often forms verbs that are intransitive or describe a state, action, or condition involving the subject.

Here:

• ubah = change, alteration
• berubah = to change, to undergo change

A useful comparison:

• berubah = change / become different
• mengubah = change something / alter something

So:

• Tempo itu berubah = The tempo changed
• Dia mengubah tempo itu = He/She changed that tempo

That distinction is very important in Malay.

Because the sentence means that the rhythm and tempo themselves changed, not that someone changed them.

Malay often distinguishes:

• berubah = intransitive, to change
• mengubah = transitive, to change something

Compare:

• Irama dan tempo itu berubah.
  The rhythm and tempo changed.

• Pemuzik itu mengubah irama dan tempo itu.
  The musician changed that rhythm and tempo.

So berubah is the correct choice when the subject is the thing undergoing the change.

No extra is/are is needed here.

Malay does not require a verb like to be in the same way English does, and in this sentence the main verb is already berubah.

So the structure is simply:

• Irama dan tempo itu = subject
• berubah = verb

This is a complete sentence by itself.

Malay verbs do not usually change form for tense the way English verbs do.

So berubah by itself can mean:

• changed
• changes
• is changing
• has changed

The exact time meaning depends on context.

If Malay wants to be more specific, it can add time words or aspect markers, for example:

• sudah berubah = has changed / already changed
• sedang berubah = is changing
• akan berubah = will change

Without those, the sentence remains more neutral.

Malay usually does not mark nouns for singular vs. plural the way English does.

Here, plurality is already clear because of the coordination:

• irama dan tempo = rhythm and tempo

So there is no need for any extra plural ending.

This is very normal in Malay. Nouns often stay in the same form whether they are singular or plural.

Yes. This is the normal Malay order:

• Subject + Verb

So:

• Irama dan tempo itu = subject
• berubah = verb

This is straightforward and natural Malay prose.

A different order might be possible in poetry or for emphasis, but for standard usage, this sentence is perfectly normal.

Yes. Both irama and tempo are well-established words in Malay, especially in music-related contexts.

Even if a word originally came from another language, once it is part of Malay vocabulary, it behaves like a normal Malay noun.

So in this sentence, they function just like any other nouns would.

A simple approximate pronunciation is:

• Irama → ee-RA-ma
• dan → dahn
• tempo → TEM-po
• itu → ee-too
• berubah → ber-OO-bah

A rough full pronunciation: ee-RA-ma dahn TEM-po ee-too ber-OO-bah

A few helpful notes:

• r in Malay is usually tapped or lightly rolled.
• Vowels are generally pronounced clearly.
• Stress is usually not as strong or dramatic as in English.

So try to keep the vowels clean and even rather than heavily reduced.

Yes, very often in natural translation it can.

Although itu literally corresponds to that, in actual usage it can also make a noun phrase feel more definite, so English may translate it as the if that sounds more natural.

So depending on context:

• Irama dan tempo itu berubah could be understood as
  That rhythm and tempo changed
• or
  The rhythm and tempo changed

Both are possible, and context decides which sounds best in English.