A Altered Charango Arpeggio
Charango arpeggio — fretboard diagram
A Altered Arpeggio — Notes and Intervals
Notes: A, C#, G, Bb
Intervals: 1P, 3M, 7m, 9m
Formula: 2W-6-WH
Number of notes: 4
Also known as: alt7
The A Altered arpeggio contains 4 notes (A, C#, G, Bb). Use the interactive fretboard diagram above to explore each arpeggio shape and pattern on Charango. Practice ascending and descending from the root note across all strings to learn the sound of this arpeggio.
When to Use the A Altered Arpeggio
Play the A Altered arpeggio whenever a A Altered chord appears in a progression. Unlike scales (which include passing tones), arpeggios guarantee every note you play IS a chord tone, making your solo sound harmonically precise and intentional.
Arpeggio vs. Scale
The A Altered arpeggio uses 4 notes (A, C#, G, Bb) while the full scale uses 7. The arpeggio is a subset — think of it as the skeleton of the scale. Practice alternating between the arpeggio and the full scale to develop a melodic vocabulary that mixes chord tones with passing tones.
How to Play A Altered Arpeggio on Charango
Locate A on your instrument and play through the 4 notes of the Altered arpeggio (A, C#, G, Bb) slowly, ensuring each tone rings clearly before connecting them at speed.
The A Altered arpeggio outlines a AAltered chord. Playing these 4 tones (A, C#, G, Bb) over the matching harmony ensures your melodic lines clearly follow the chord changes.
Practice Routine — Exercises for Playing
Play the A Altered arpeggio as whole notes over a backing track or drone on A. Focus on intonation and tone quality for each of the 4 notes (A, C#, G, Bb). After a few passes, begin improvising short melodic phrases built from these arpeggio tones, connecting them with passing notes.
Charango Tips
Practice the A Altered arpeggio on your instrument at a slow, comfortable tempo, focusing on clean articulation of each of the 4 tones before gradually increasing speed.