Scale
A scale is an ordered set of notes within a pitch range. It shows which notes are present and how they are arranged upward or downward.
This is one of the most important beginner questions in Arabic music. Many learners memorize the notes of a maqam and assume that this is enough. It is not. A scale tells you the order of notes; a maqam tells you how those notes behave in melody, movement, emphasis, and resolution.
A scale is an ordered set of notes within a pitch range. It shows which notes are present and how they are arranged upward or downward.
A maqam is broader. It includes notes, but also tonic, important resting points, ajnas, melodic pathways, common movements, and a recognizable musical character.
When you say that a piece is in Nahawand, you are not only saying that its notes resemble a certain scale. You are also pointing to a way of shaping phrases, known resting points, common ascending and descending movements, and possible modulations.
Put simply: a scale answers what are the notes? A maqam answers how do these notes move, sound, and come to life?