The most useful arpeggios for general application are one-octave major 7th and minor 7th shapes, which are essential for navigating jazz, rock, and pop chord changes. Specifically, the dominant 7th arpeggio (e.g., in E or A shapes) is widely considered the most versatile for blues and funk, while triad shapes (major/minor) provide fundamental melodic structure.
I think that the best arpeggios to learn first are the Dominant 7th arpeggios (the E shape and the A shape). Learn to use these in a 12 Bar Blues (in the key of A) and get familiar with the idea. As well as being used in blues, the 7th chords are the most common chord type used 'out of key' as described above.
Major 7 arpeggios are made of tonic (1), major third (3), perfect fifth (5) and major seventh (7). These four tones are from the major scale as shown in the chart below. C major scale.
1-3-5-8 is just a standard root position 1-octave ascending arpeggio. 3-5-8-10, 5-8-10-12 are 1-octave ascending arpeggios in 1st and 2nd inversion, respectively. 8-5-3-1, 10-8-5-3 and 12-10-8-5 are the descending variants of the above.
Arpeggios Explained (Real Song Examples)
The "forbidden guitar song" refers primarily to Led Zeppelin's "Stairway to Heaven," specifically its iconic intro, because it's so overplayed and memed in guitar stores that it's humorously banned, a joke popularized by the movie Wayne's World. Other songs often joked about as "forbidden" or overused include "Wonderwall" (Oasis), "Smoke on the Water" (Deep Purple), "Blackbird" (The Beatles), and "Smells Like Teen Spirit" (Nirvana).
Arpeggios may include all notes of a scale or a partial set of notes from a scale, but must contain notes of at least three pitches (two-pitch sequences are known as trills or tremolos).
The "forbidden chord" primarily refers to the tritone, a dissonant musical interval (augmented fourth/diminished fifth) deemed unsettling and associated with the devil (diabolus in musica) in medieval music, leading to its historical avoidance in church music due to its harsh sound and mathematical ratios. Despite its ban, it became a staple in jazz (the "flattened fifth") and modern genres, used for tension, while on guitar, it can also refer to specific, challenging chord shapes or progressions, like those in "Stairway to Heaven".
The "4 golden chords" refer to the I-V-vi-IV chord progression (e.g., C-G-Am-F in the key of C), a simple, powerful pattern used in hundreds, if not thousands, of popular songs across genres like pop, rock, and country, allowing beginners to play many hits by mastering just these fundamental chords, often simplified as C, G, Am, and F on piano or G, D, Em, C on guitar.
Jimi Hendrix's "favorite chord" is widely considered the dominant 7th sharp 9th (7#9), famously known as the "Hendrix Chord," characterized by its tense, bluesy sound, often played as an E7#9 in songs like "Purple Haze" and "Foxy Lady," blending major and minor qualities with a sharp ninth. He used variations of this chord and thumb-over-the-neck techniques to add richness and movement, creating his signature sound.
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While a chord is defined as a group of notes that are sounded together at the same time, an arpeggio, a.k.a. "broken chord," indicates a chord in which the notes are sounded individually.
Arpeggios are the notes that make up a chord and are played one after another. The easiest way to find the notes for an arpeggio is to skip every other note in a scale. Voila: a C major triad.
Hearing The Chords
When you play several notes simultaneously, you get harmony. For many instruments that means playing a lot of three, four and five note chords. If you take all the notes from those chords and play them consecutively, in a predictable patter, you get an arpeggio.
A broken chord is a chord in which all notes appear in succession. An arpeggio is a common type of broken chord in which the notes of a chord are played rapidly, one after the other, from the bottom of the chord to the top. In a score, it is marked with a wavy vertical line in front of a chord.
The 80/20 rule (Pareto principle) applied to guitar means 80% of your musical results come from focusing on just 20% of crucial skills, like core chords, rhythm, scales (pentatonic/blues), and timing, cutting out "fluff" for faster progress. It suggests focusing heavily on essential skills like basic chords, strumming, and rhythm (the "80%") to achieve most of your playing goals, rather than getting lost in advanced theory or complex solos, which often yield less practical benefit early on.
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Coldplay has several popular 4-chord songs, with "Viva La Vida" and "The Scientist" being prime examples, often using simple progressions like C-G-Am-F (or variations) for the former and Dm-Bb-F-Fadd9 for the latter, making them great for guitarists by sticking to a few core chords to build their famous anthems. Other songs like "Yellow" also heavily rely on simple chord patterns, showcasing how few chords can create massive hits.
The musical interval of a tritone or diminished fifth was referred to as The Devil's Chord (or the Devil In Music) and subsequently banned by the Roman Catholic Church.
The scariest piano chords rely on dissonance, tension, and instability, with top contenders being diminished chords, the unsettling minor major 7th (Hitchcock chord), tight note clusters, the dissonant tritone, and progressions like the C minor to A-flat minor used in movie themes for instant dread. Playing these with heavy sustain, slow arpeggiation, or in unsettling inversions builds maximum creepiness.
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Just like 7th chords, 7th arpeggios contain four notes. All we're doing is adding an extra note to the major and minor triads (3 notes) we learned previously. This provides us with a fuller arpeggio sound that can be used to extend the basic major or minor sounds.