| A knowledge of chord progressions will help you communicate and play with other musicians. |
瞭解和弦進行能幫助你和其他樂手溝通與合奏， |
| It is a must for participating in any kind of jam session. |
是參與即興演奏的必備知識。 |
| Knowing the most commonly used chord progressions and forms allows for greater enjoyment and unity when playing with other musicians. |
若知道最常用的和弦進行與組成，與其他樂手合奏時更能樂在其中且和諧一致。 |
| Most songs use three or more chords though some songs exist that only use two chords. |
大部分的歌曲在整首歌中會使用三或更多個和弦，但有些歌曲只會使用兩個和弦。 |
| Often musicians will embellish chords by adding or removing notes and to provide further interest may vary the rhythm. |
樂手通常增加或刪減一些組成音，為和弦加點裝飾，增添可能對韻律產生變化的小趣味。 |
| One chord "structures" are uncommon but they do exist. |
使用單一和弦的「結構」雖然罕見，但確實存在。 |
| For instance, Frere Jacques is a one-chord song because it can be played against a single major chord. |
例如，兒歌「兩隻老虎」就是一首單和弦歌曲，整首歌能夠彈奏單一大調和弦即可。 |
| The melody "Taps", traditionally used at American military funerals, and which is very evocative, consists only of the notes which comprise the C-major chord (C, E, G). |
「熄燈號」的旋律傳統上用於美國軍隊葬禮，這段極富感召力的旋律只包含 C 大調和弦的組成音 (C、E、G)。 |
| One chord songs are rare on guitar. |
單和弦歌曲在吉他曲中很少見。 |
| The most common chord progression is the I-IV-V. |
最常用的和弦進行是 I-IV-V。 |
| Note that Roman Numerals are used to describe these chord progressions. |
請注意，我們使用羅馬數字記述和弦進行。 |
| Many songs use only these three chords. |
許多歌曲只使用三個和弦。 |
| If one views chords as a set of balancing scales with the root note and octave root at opposing ends it will be noted that the IV and V chords are at equal distance respectively to the root and octave root. |
若將和弦視為一組包含根音與高八度根音的平衡音階來看，會發現 IV (四度音) 和 V (五度音) 各自與根音和高八度根音之間音程是相同的。 |
| Take for example the key of C major: |
以 C 大調這個調性為例： |
| C - D - E - F - G - A - B - C |
C - D - E - F - G - A - B - C |
| You will see that the G note (or chord) is a fifth above the root note. |
你可以看到 G 這個音 (或說這個和弦) 在根音的高五度。 |
| The note F is a fifth below the octave. |
F 這個音則是高音 C 的低五度。 |
| This movement of a fifth is very pleasing to the human ear in its sense of balance and cohesion in relation to the root note. |
與根音相差五度的音程合音有種平衡而和諧的感覺，讓人聽起來十分舒適。 |
| Another way to view chord progressions is that of a journey. |
檢視和弦進行的另一種方式，可以看看和聲安排。 |
| In the sense that the root (or tonic) chord is the starting point and the octave root is at the end. |
和弦的根音 (或稱主音) 可視為起點，高八度根音則視為終點。 |
| All other points (chords) provide interest and variation with the fourth and the fifth chord occupying a special place on the journey due to them being half-way. |
其他所有組成音則可增添趣味與變化，像是位於中間的四度音和五度音，就在和聲安排中有著特殊地位。 |
| Many chord progressions start at the tonic (I), moves away to somewhere else, only to come back to the tonic. |
許多和弦進行都從主音 (I) 開始，經過許多變化之後再回到主音。 |
| You can play this progression with major chords or you can substitute minor chords for the IV or V. |
你可以使用大調和弦彈奏這樣的和弦進行，也可以將四和弦或五和弦取代為小調和弦。 |
