The numbers at the top of each figure represents seconds of time. The nature, continuity and tone of the notes are indicated by the various lines, and the degree of their slope indicates the speed of ascent or descent of the notes.
The still is used to call all hands to attention as a mark of respect, or to order silence on any occasion. The still is also used to announce the arrival onboard of a senior Officer. The pipe is an order in itself and does not require any verbal addition. The still is a high note held for 8 seconds. If done properly, it should end very abruptly.
The carry on is used to negate the still. The pipe is an order in itself and does not require any verbal addition.
The general call precedes any broadcast order; it draws attention to the order. The general call is used when passing out-of-routine orders or information of general interest.
When a Commanding Officer of an HMCS ship arrives on-board he/she is entitled to this pipe. To be done properly it should be 12 seconds long with very smooth transitions. To accomplish this, the sailor must take a very long deep breath prior to beginning; failure to do so will cause the pipe to be abruptly cut short.