Nota sehpasındaki partisyon ölçü çizgilerini gösteriyor.

It means something like on the music stand or more literally the one that is on the music stand.

It is built step by step:

• nota sehpası = music stand
• nota sehpasında = on/at the music stand
• nota sehpasındaki = the one that is on/at the music stand

That final -ki turns the location phrase into something adjective-like, so it can describe a following noun.

So in this sentence, nota sehpasındaki is a modifier: it tells you that the following thing is the one located on the music stand.

Because Turkish often forms noun compounds with this pattern:

• first noun = modifier
• second noun = main noun + -(s)ı / -(s)i / -(s)u / -(s)ü

So:

• nota = note
• sehpa = stand / small table
• nota sehpası = note stand / music stand

This is a very common structure in Turkish. Similar examples:

• okul kapısı = school door
• araba kapısı = car door

So sehpası is not random; it is the normal compound form.

That n is a buffer consonant.

In Turkish, when a noun already has a possessive ending and another suffix is added after it, an extra n often appears to link them smoothly.

For example:

• sehpası
  • -da becomes sehpasında
• çizgileri
  • -i becomes çizgilerini

So the n is not a separate word or meaning by itself. It is just a linking sound that appears in this grammar pattern.

A helpful way to scan it is:

• nota sehpasındaki = on the music stand / the one on the music stand
• partisyon ölçü çizgilerini = the partition/score measure lines
• gösteriyor = shows / is showing

Turkish usually puts the verb at the end, so everything before gösteriyor builds up the information first.

A useful reading strategy is:

1. Find the verb: gösteriyor
2. Work backward from the end of the noun phrase
3. Treat earlier words as modifiers

So instead of expecting English-style word order, expect Turkish to stack descriptive elements before the main verb.

Here partisyon is functioning as a noun modifier before another noun.

Turkish often uses bare nouns like this, especially in technical or compound expressions. The earlier noun stays plain, and the last noun in the phrase carries the important endings.

So in a phrase like partisyon ölçü çizgileri, partisyon modifies ölçü çizgileri.

This is similar to how English can say:

• music theory book
• computer screen settings

The first nouns are acting like descriptors. Turkish does this a lot too.

It looks long because several pieces are attached to one noun.

You can break it down like this:

• çizgi = line
• ölçü çizgisi = measure line
• ölçü çizgileri = measure lines
• ölçü çizgilerini = the measure lines (as a specific direct object)

What is happening grammatically:

• ölçü çizgisi is itself a noun compound
• -ler / -lar makes it plural
• -ni marks it as a definite/specific direct object

So çizgilerini contains both the compound structure and the object marking.

Because Turkish does not have articles like English a and the.

Instead, definiteness is often shown by:

• context
• word order
• case marking

In this sentence, the object ending helps. The -ni in çizgilerini shows that this is a specific object, which often corresponds to English the.

So English uses a separate word, but Turkish often shows the same idea with a suffix.

Gösteriyor is from the verb göstermek = to show.

The ending -iyor is the present continuous/progressive form, so the basic meaning is:

• is showing

But in real Turkish, especially in descriptions, instructions, menus, and general statements, it can also sound natural as:

• shows

So both is showing and shows may be good translations depending on context.

Possibly, yes — and that is normal in Turkish.

Turkish often leaves out subject pronouns when they are understood from context. So gösteriyor can mean:

• he is showing
• she is showing
• it is showing

without saying the pronoun explicitly.

In many technical or interface-style sentences, English would often supply it, while Turkish simply leaves it unsaid.

So if you feel that English needs a subject here, that is a normal reaction. Turkish often does not state it.