| 摘要 |
PROBLEM TO BE SOLVED: To improve operation efficiency at editing time and eliminates a waste of a memory by specifying the chord name of an introduction in simple form. SOLUTION: This device has a selecting means 9 which can make a choice for using two chord data input areas for 1st Bar.0STEP in chord progression information inputted by a chord progression information input means 7 and sets a flat 9 a when the choice is made, a storage area expanding means 10 which outputs a control command for the use of the two chord information storage areas of 1st Bar.0STEP of the chord progression information storage means 5 to an address specifying means 6, and an introduction specifying means 11 which reads the chord progression information out of the chord progression information storage means 5 and commands a writing means 8 to write the 1st chord progression information in the chord information storage means 2 as chord information on the introduction when two pieces of chord progression information are stored in the 1st Bar.0STEP. |
