Sigue la cuenta de ocho; si no, perderás el compás.

Because sigue is the affirmative tú imperative of seguir: it means follow / keep following as a command.

• tú sigues = you follow / you are following
• sigue = follow!

So the sentence is giving an instruction, not making a statement.

A useful comparison:

• Sigue la cuenta de ocho. = Follow the eight-count.
• No sigas la cuenta de ocho. = Don’t follow the eight-count.

Notice that the negative command changes to sigas, not sigue.

Yes, but that is completely normal in Spanish.

Spanish often omits subject pronouns when the verb form already makes the subject clear. In an imperative like sigue, the understood subject is tú.

So:

• Sigue la cuenta de ocho
  and
• Tú sigue la cuenta de ocho

both mean the same thing, but the second version sounds more emphatic or marked.

It refers to an eight-count, especially in music, dance, or movement practice.

In other words, it means counting the beats in a group of eight:

uno, dos, tres, cuatro, cinco, seis, siete, ocho

This is important because English speakers may be tempted to understand it as the count of eight in a very literal way. In context, it usually means:

• the eight-count
• the count in groups of eight
• the sequence of eight beats

So seguir la cuenta de ocho means something like keep following the eight-count.

Because de ocho and hasta ocho mean different things.

• cuenta de ocho = eight-count / a count structured in eight beats
• cuenta hasta ocho = count up to eight

So this sentence is not telling someone simply to count from 1 to 8. It is telling them to stay with a specific rhythmic pattern or beat structure.

Compare:

• Sigue la cuenta de ocho. = Follow the eight-count.
• Cuenta hasta ocho. = Count to eight.

Because si no and sino are different.

• si no = if not
• sino = but rather / except / but instead

In your sentence, the meaning is clearly conditional:

• si no, perderás el compás = if not, you’ll lose the beat

So it has to be si no.

Compare:

• Hazlo ahora; si no, será demasiado tarde. = Do it now; if not, it’ll be too late.
• No quiero té, sino café. = I don’t want tea, but rather coffee.

Because it expresses a likely consequence: you will lose the beat.

Spanish often uses the future this way to sound firm, clear, and a little instructional:

• Sigue la cuenta de ocho; si no, perderás el compás.

It means: do this, otherwise this consequence will happen.

In more informal speech, Spanish might also use other forms, such as:

• ...si no, vas a perder el compás.
• ...si no, pierdes el compás.

But perderás works very well in instructions because it sounds direct and definite.

Here, compás means the beat, rhythmic timing, or meter.

It does not mean a navigational compass here.

Depending on context, compás can refer to:

• the beat you need to stay with in music or dance
• the rhythmic pattern
• the musical meter or measure

So perder el compás means:

• to lose the beat
• to fall out of time
• to get out of rhythm

In a dance or music setting, that is exactly the natural meaning.

The semicolon links two closely related parts:

• Sigue la cuenta de ocho
• si no, perderás el compás

It creates a stronger pause than a comma, but it keeps the two ideas tightly connected. In English, you might also see this written with a semicolon for the same reason.

A comma is also possible in less careful writing:

• Sigue la cuenta de ocho, si no, perderás el compás.

But the semicolon is neater because the second part is a consequence of the first.

Because Spanish uses definite articles more often than English does.

Here:

• la cuenta de ocho = the specific count you are supposed to follow
• el compás = the beat/rhythm in question

English often drops articles in places where Spanish keeps them. So although English might say follow eight-count and don’t lose rhythm in some compressed style, Spanish naturally says la cuenta and el compás.

These articles make the sentence sound normal and idiomatic.

Sigue is pronounced roughly SEE-geh.

Important point: in gui, the u is silent unless it has a diaeresis: güi.

So:

• sigue = SI-ge
• not sig-oo-e

A simple pronunciation guide for the whole sentence in standard Spain Spanish would be:

• Sigue = SEE-geh
• la cuenta = la KWEN-ta
• de ocho = deh O-cho
• si no = see NO
• perderás = per-deh-RAS
• el compás = el kom-PAS

The strongest stresses are on:

• sigue → first syllable
• cuenta → first syllable
• ocho → first syllable
• perderás → last syllable
• compás → last syllable

Yes. The sentence is natural, but there are several alternatives depending on tone and context.

For example:

• Sigue la cuenta de ocho; si no, perderás el ritmo.
• Mantén la cuenta de ocho; si no, perderás el compás.
• No dejes la cuenta de ocho o perderás el compás.

The version with compás sounds especially appropriate in music or dance because it focuses on staying in time. The version with ritmo is also very natural, but it can feel a bit broader and less technical than compás.