Running soundscrape --no-gui boots you directly into a text-mode listener.
Learning these keybindings can help you to be more adept at the text mode. In addition, they are also used in other applications, so it behooves you to learn them.
Keys are listed using emacs-style notation: C-a means Control-a, M-a means Alt-a or Meta-a, depending on your keyboard.
Move to the beginning of the line
Move to the end of the line
Move forward one character
Move back one character
Move forward one word
Move back one word
Stop (interrupt) the interpreter
Refresh the line (occasionally needed after pressing C-c)
Fetch the previous command from the history
Fetch the next command from the history
Reverse search for something in the history (very useful!)
Delete the next character (sometimes bound to Delete); pressing C-d (not Delete) at an empty line will quit the program, so be careful
Kill the next word
Delete the previous character
Kill the previous word
Yank something that has been previously killed (Kill and Yank correspond to Cut and Paste)
Attempt to complete the current word (only works for a word after an open parenthesis at the moment)
These bindings are present in many other applications as well, so it behooves you to learn them, perhaps not all at once, but at some point in time.