Q&A. While we often think of expenses as salaries, advertising, rent, interest, and so on, the cost of goods sold is also an expense. The cost of goods that were sold needs to be matched with the pertinent sales on the income statement, just as commission expense must be matched with sales or other revenues.
In music, an octave (Latin: octavus : eighth) or perfect octave is the interval between one musical pitch and another with half or double its frequency. It is defined by ANSI as the unit of frequency level when the base of the logarithm is two.or example, if one note has a frequency of 440 Hz, the note an octave above it is at 880 Hz, and the note an octave below is at 220 Hz.
The octave is eight lines long, and typically follows a rhyme scheme of ABBAABBA, or ABBACDDC. The sestet occupies the remaining six lines of the poem, and typically follows a rhyme scheme of CDCDCD, or CDECDE. The octave and the sestet are usually contrasted in some key way: for example, the octave may ask a question to which the sestet offers an answer.