In all the previous steps, you used the editor only to view the resulting MIDI file. Now you will use it to fix inaccuracies in the MIDI file you have as the result of the automatic recognition. A file of the internal wne format is used. This file contains both MIDI and spectrogram, which allows you to compare notes with the original sound visually. Besides, you can use various play modes to compare them while listening to the melody. You can play Audio and MIDI synchronously to compare the files while listening to them.

The first thing that you notice is that the onset of MIDI notes lags behind the source record. This problem was described in the previous section. To fix it, just select all notes and shift them to the left in time.

You can see the described process in demo 12.

You can find the detailed description of the purpose of bar lines in the program help, but in this case you need them primarily as marks that can be used to synchronize different voices.

Determine the meter of the piece. You can do it judging from the accompaniment (the guitar part). The meter is 4/4 in this case.

It is sometimes difficult to determine the position of bar lines. Usually, it can be determined by the position of the upbeat, but sometimes it is the first and third quarters that are prominent in the bar. You can split each bar into two bars in this case. For you to be able to position notes more precisely after you set bar lines, it is recommended to select the shortest bar length of those possible.

It is convenient to use the Tapping tool for setting bar lines. You can use it to tap bar lines from hearing by upbeats. In this case, the lowest note in the accompaniment is taken as the basis and its position is taken as the beginning of the bar. It is recommended to listen to the audio track and tap bars first in order to practice it.

Now move on to editing the accompaniment in this part (from 0 to 3.9 seconds). You can easily see that the note D-3 selected in the picture appeared because several sequential notes of the same height had merged. It occurs when a note does not fade out before it is played again. It is necessary to split this note into several notes. After you listen to this fragment in the Audiomode, you can hear that the note D-3 is played three times: the first time when the merged note starts, the second time simultaneously with F-3 and the third time right after the second A-2. The most convenient way is to reduce the duration of the source note and then copy it to the places where it belongs. You can see the entire procedure in demo 14:

Take a look at the very beginning of the piece – up to 1.4 seconds. The very first "Re" note (D-3) is short and quiet and it can be deleted. After that select the first three notes of the piece (make sure that only they are selected – the number of currently selected notes is displayed in the lower-right corner of the editor) and set the play mode to Play Selected и Audio.
You can hear that there are 4 notes in the passage going up. There are only 3 of them in the MIDI notation. Move the mouse pointer over each of the selected notes one by one holding down the Ctrl key. This will make the program play the selected note. Thus, we can see that the fourth note, the highest one, is absent from the first passage. It is F-3, which you can easily hear if you hold down the Ctrl key and click the closest note with the same height. That is why we copy it to the position of the missing note. The entire sequence of actions is shown in demo 15.

Now fix the position of the first bar line – it must coincide with the onset of the bass "Re" (D-2). You should make sure that the MIDI note and the corresponding note in the audio record actually sound simultaneously. You have already performed this operation, but at that time you moved the whole track, while it is the position of a specific note that you are interested in this time. That is why it is more convenient to select another play mode, to be exact – select the note you are interested in and some note not far ahead of it and use the Play Selected mode. After you choose the exact position of the bass note, insert a bar line there and align all notes played at the moment to the border of the bar (see demo 16).