The Collaborative International Dictionary
Sightsman
Sightsman \Sights"man\, n.; pl. Sightsmen. (Mus.)
One who reads or performs music readily at first sight. [R.]
--Busby.
Wiktionary
sightsman
n. (context dated music English) A sight-reader.
Usage examples of "sightsman".
If you have to consult with your religious leader to answer a simple navigational question, then do so, but if you cannot do your duty as Sightsman, I will have you relieved, and your share of our profits for the entire voyage will be reduced accordingly.
Maldari turned to his Sightsman and made a curt motion, and the screens on both ships went dark.
Maldari warned the Sightsman to set the shields and transporter alarms carefully, then left the younger Pro-methearts in charge of the bridge and headed out the corridor.