That's a reasonable assumption, but the reality is not so simple. In a case where performers are reading multiple cues with varying tempos and time signatures one after another, stopping and starting, punching in at different locations, perhaps penciling in adjustments to the music; it can become easy to mistake a pattern that is not notated in a standardized way.Anders Hedelin wrote: ↑11 Oct 2023, 16:49 The dotted quarters in the Mahler example are quite obvious and easy to read, for a musician above beginner's level. I can't believe that professional, and most likely very experienced, musicians in the film industry (or whatever similar venue) have difficulties sight-reading this.
That doesn't mean the performer completely plays a wrong rhythm or pitch. A simple hesitation for a fraction of a second that results in an attack not being perfectly together, or a phrase not perfectly in tune, is enough to warrant another take and lose valuable time. That's why we are trying to make notation as "mistake-proof" as possible. It's about reducing the pressure on the performers so they can perform at their peak.
The performers appreciate it as well. There has been quite a noticeable drop in the quality of what is put on the stand in the last few decades. Performers won't say anything to the composers or orchestrators for fear of losing their jobs, but they will complain loudly behind closed doors about how they have to work so much harder because of parts deemed "good enough".