Some knowledge of music

PS: note the example of if not marked as such, it is the C major scale

PS2: Benpian notes doyoudo music theory tutorial links at the end of the text

Some terms about rhythm

BPM : Beats per minute Beats Per Minute
x / y : the y-note for a film, each section has x Sign

above embodiment, a first C5 is a quarter note, in the section 1-2 was divided into four such beat addition, it is 4/4shot
x diaeresis : note the time value represented

in FIG., namely whole notes, half notes, quarter notes, eighth notes

Piano keyboard

Piano keyboard have been repeating this pattern, a total of 88 keys.

Musical alphabet

The letters on the keyboard is its musical alphabet.

Name on the black keys depends on the name next to the white keys, such as between the CD can call C♯read as 升C, C Sharpor known D♭pronounced 降D, D flat. as follows:

Semitones

Adjacent semitone difference keyboard piano, two semitones constitute a tritone. Or above that figure, I'm too lazy to paste up a.

CAnd D♭is a semitone, among Cand Dbetween is a whole step.

Packet

This stuff is the grouping rules of our country, foreign seemingly did not say this, so we are seeing FL C5 on the Piano Roll friends, C6 friends these things, but this stuff does not matter.

C is the center of a group of small print C.

Tone

What is the major

What C major, D major, often heard. That's clitoris roar?

C major to C is the main tone. It contains all what a sound it?

For example, on the map, this is C major seven sound. The relationship between them is 全全半全全全半. What do you mean? Is the tritone phase difference between the first and the second, a difference of semitone, so between the third and fourth.

After this set of operations, reaching the next vocalist, is C.

D major that it? D is to the main sound, then go to half full full full full full half pattern

就是这样。那为什么D大调都用升号来标记而不是降号呢？比如F♯明明可以标记为G♭啊。

这是规定吼~

遇到这图里升号调的就用升号标记，降号调的就用降号标记。

音的稳定性

每个调中有七个音，分为三个稳定音和四个不稳定音，其中主音是最稳定的。按稳定性可以把它们排序。

音的倾向性

在曲子里，不稳定的音总会有运动到稳定音的倾向。否则听起来就很怪。

比如下面的图是小星星的旋律：

可以看到第二小节的A5是个不稳定音(6)，他就会往稳定音G5(5)趋近，如果让它运动到B5(7)的话听起来就很怪。第四小节的D5(2)会往C5(1)趋近。这就是音的倾向性。

音程

音程是两个声音的距离，如下是音程表：

有点懵逼哈，这是咋数的呢？？

半音数和音程的对应关系

看下这两个按键，从第一个按键往下数半音数（不算第一个，算最后一个），它们之间有四个半音，在看那个表，它们的音程是大三度。

大小之分

首先两个音相差三度说明它们在调内音中相差三（包括第一个和最后一个），就像上个图中的C和E，那我们看D和F也是差三，也就是它们的音程也是三度，但是它们之间却只有三个半音，所以是小三度。这也就是大小之分。

纯音程

此表中有四个纯音程，啥子意思呢？

纯一度: 半音数是0，那么它只可能有一个音，没有大小之分的，所以它是纯的。
纯八度: 半音数是12，无论怎么数，都是下一个一样的音，这也就是我们总说高八度的原因，它也只有一种可能，没大小之分。
纯四五度: 半音数是五和七，大部分调内音的四度和五度都是差5和7个半音的，所以叫纯四度和纯五度，而没有分大小，对于特例，用增四或减五来区分。

4级和7级调内差四所以差四度，但是它们差了6个半音，所以是增四

这7级和下一个4级音程是五度，差6个半音，所以是减五度。