Samples can be played in different ways. These playback modes are divided into 3 modes. These modes are useful in practice in a variety of situations.
Classic / Normal
In normal or "Classic" mode, the samples will sound as long as the key is held on the MIDI keyboard, and letting go of the key will also silence the sample, as well as the duration of the sequencer The sample can only sound as long as it is long.
When combined with an envelope, this playback mode is found when using many natural instruments where the tone length can be determined by the player. For example, a piano: If you hit the button, the sound will sound and remain in effect until you remove the finger from the key or it has faded out by itself.
In the one-shot mode, the sample is always played completely after pressing the key on the MIDI keyboard. In doing so, the information that the input device outputs when releasing the key is ignored and the sample runs through completely once.
This playback mode is mostly used when using percussive sounds. Similar to natural instruments, a series of sound events are triggered as a result of a brief impact on the drum. One rarely has an influence on the duration of the sound of the drum.
Loop playback mode is used on pads and other sustained spherical sounds. Similar to Classic Mode, the sound will only sound as long as the MIDI note is long or the finger on the key. However, this sample can never find its own end due to the limitation of the playing time. The sample continues to play until it encounters a loop end marker from which the playhead jumps to the loop start. This does not necessarily have to be the beginning of the sample, but can be set freely within the sample.