TC.EXE - Time calculator
This very old piece of software (binary code written in 1989 by Alf Björnberg) is useful for calculating one duration as percentage of another. It works on PCs as a DOS routine. Just download TC.EXE to your desktop and click on it to run (no installation needed).
For example, having calculated the total duration of all of Morricones music cues for The Mission (1986) to 1 hour, 12 minutes and five seconds (how did I do that?), I wanted to know what proportion of the film (total running time 2 hours, 4 minutes and 55 seconds) contained music. This page explains how to do that. Other functions are listed here.
Step 1. Download TC.EXE to your computer
Step 2. Run TC.EXE from your computer. You should see something resembling this
Step 3. Enter
the total running time of the film as three separate numbers, like
Step 4. Press < (Enter) again and then % to select percentage calculation:
Press T to select percentage calculation
of two durations, in this case to find out what
Step 6. Enter
the total duration of all music cues (1 hour, 12 mins, 5 seconds) like
Step 7. Press < (Enter) for the last time to reveal the answer.
answer is 57.7%.
The on-screen instructions for TC.EXE are a bit difficult to read. Here they are much clearer. Options after entering the first time value for each calculation are: