page_title: 17 equal temperament
section_title: Notation
hierarchical_section_title: 17 equal temperament / Notation
caption_attribution_description: English: Easley Blackwood's notation system for 17 equal temperament: intervals are notated similarly to those they approximate and enharmonic equivalents are distinct from those in 12 equal temperament.
context_page_description: In music, 17 tone equal temperament is the tempered scale derived by dividing the octave into 17 equal steps. Each step represents a frequency ratio of ¹⁷√2, or 70.6 cents.
  17-ET is the tuning of the Regular diatonic tuning in which the tempered perfect fifth is equal to 705.88 cents, as shown in Figure 1.
context_section_description: Easley Blackwood, Jr. created a notation system where sharps and flats raised/lowered 2 steps.
  This yields the chromatic scale:
  C, D♭, C♯, D, E♭, D♯, E, F, G♭, F♯, G, A♭, G♯, A, B♭, A♯, B, C
  Quarter tone sharps and flats can also be used, yielding the following chromatic scale:
  C, C/D♭, C♯/D, D, D/E♭, D♯/E, E, F, F/G♭, F♯/G, G, G/A♭, G♯/A, A, A/B♭, A♯/B, B, C
caption: Notation of Easley Blackwood[3] for 17 equal temperament: intervals are notated similarly to those they approximate and enharmonic equivalents are distinct from those of 12 equal temperament (e.g., A♯/C♭). About this soundPlay (help·info)
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