El ensayo general incluye la escenografía.

No. Although ensayo can mean essay in some contexts, in this sentence it means rehearsal.

That is a very common false friend for English speakers:

• un ensayo = an essay / a rehearsal, depending on context
• ensayar = to rehearse

Because the sentence mentions escenografía (stage design/scenery), the theatrical meaning rehearsal is the one being used here.

Ensayo general is the standard expression for a full rehearsal, often the final rehearsal before a performance. In theatre, it is often very close to what English speakers call a dress rehearsal, although the exact nuance can vary by context.

So:

• ensayo = rehearsal
• ensayo general = full/general rehearsal

It suggests that all the main elements are brought together, not just one part.

Because the two nouns have different grammatical gender:

• ensayo is masculine → el ensayo
• escenografía is feminine → la escenografía

This is grammatical gender, not biological gender.

A useful pattern:

• many nouns ending in -o are masculine
• many nouns ending in -a are feminine

So these two fit a common pattern.

Spanish uses definite articles more often than English does.

Here:

• el ensayo general = the general rehearsal
• la escenografía = the scenery / the stage design / the set

In English, we might sometimes say General rehearsal includes scenery only in a headline-like style, but normal English would also usually use the. In Spanish, the articles sound fully natural and expected.

Also, la escenografía can refer to the stage design as a whole, so the definite article is very natural.

Incluye means includes.

It is the third person singular present tense of incluir:

• yo incluyo = I include
• tú incluyes = you include
• él/ella/usted incluye = he/she/you(formal) includes
• nosotros incluimos
• vosotros incluís
• ellos/ellas/ustedes incluyen

In this sentence, the subject is el ensayo general, which is singular, so incluye is the correct form.

Because incluir is a -uir verb, and these verbs usually add y in many present-tense forms.

For example:

• construir → construyo, construyes, construye...
• incluir → incluyo, incluyes, incluye...

So incluye is the regular present-tense form for this type of verb.

Escenografía usually means scenery, set design, or stage design, depending on context.

It does not usually mean the physical stage itself. It refers to the visual setup used in a performance.

Depending on the situation, English translations could be:

• the scenery
• the set
• the stage design

So in this sentence, it means the rehearsal includes the scenic/set elements too.

They are different words:

• escenografía = scenery / set design / scenic design
• escenario = stage

So:

• subir al escenario = to go onto the stage
• preparar la escenografía = to prepare the scenery/set design

English speakers often mix these up because both relate to theatre, but they are not interchangeable.

Because la escenografía is not a person.

Spanish uses the personal a mainly before specific human beings (and sometimes pets or personified beings). For example:

• Veo a María.
• Conozco a tu hermano.

But here:

• incluye la escenografía

No a is needed because la escenografía is a thing, not a person.

Yes. This is a very normal Spanish sentence pattern:

Subject + verb + direct object

• El ensayo general = subject
• incluye = verb
• la escenografía = direct object

It is straightforward and neutral. A learner can use this as a model for many similar sentences.

Yes. Very often escenografía is a collective or abstract idea, not just one countable thing.

It can mean:

• the overall scenic design
• the scenery used in a production
• the visual theatrical setup

So la escenografía here likely means the set/scenery as part of the production, not just one single prop.

Yes, it sounds natural in Spain.

A speaker in Spain would understand it easily as something like:

• the full rehearsal includes the scenery
• the dress rehearsal includes the set/scenic elements

The vocabulary and structure are standard Spanish and fully acceptable in Spain.

In ensayo general, general keeps its basic idea of overall or full, but fixed expressions do not always match English word-for-word.

So even though general looks familiar, the full phrase ensayo general is best learned as a set expression meaning full rehearsal or often dress rehearsal.

In Spain, general is pronounced with a Spanish g/j sound:

• roughly heh-neh-RAL in Castilian-style pronunciation, though that is only an approximation.

The important point is that you should understand the phrase as a whole, not just translate each word separately.