27. An audio processing method, comprising: sequentially rendering audio summaries and transition audio segments with at least one transition audio segment rendered between each pair of sequential audio summaries, wherein each of the audio summaries comprises digital content summarizing at least a portion of a respective associated audio piece; receiving a user request to browse the audio summaries; ordering ones of the audio summaries into a sequence in order of audio feature vector closeness to a given one of the audio summaries being rendered when the user request was received; and rendering the sequence.
27. An audio processing method, comprising: sequentially rendering audio summaries and transition audio segments with at least one transition audio segment rendered between each pair of sequential audio summaries, wherein each of the audio summaries comprises digital content summarizing at least a portion of a respective associated audio piece; receiving a user request to browse the audio summaries; ordering ones of the audio summaries into a sequence in order of audio feature vector closeness to a given one of the audio summaries being rendered when the user request was received; and rendering the sequence. 28. The method of claim 27 , wherein audio summaries are rendered in accordance with the ordered sequence.