HOLD freezes the pitch measured from each strike's decay — hit, read, adjust. TONE releases the mic while it sounds (iOS sends output to the earpiece otherwise) and picks it back up when you stop it.
LUG CLEARING
{{ stepText }}
{{ spreadText }}
SPREAD
{{ l.num }}
{{ l.hzText }}
Strike 1" from the highlighted lug, then capture. Lugs are numbered in tuning order, so just work 1, 2, 3… — the star pattern is already built into where those numbers sit on the hoop. Keep the opposite head muffled.
GENRE
{{ genreBlurb }}
PITCH
{{ pitchText }}
RESONANCE
{{ d.name }}
{{ d.sizeText }}
FUND
{{ d.fundText }}
{{ d.fundNote }}
BATTER LUG
{{ d.batterText }}
RESO LUG
{{ d.resoText }}
{{ d.ratioText }}
{{ d.warn }}
TYPE
DIAMETER
DEPTH
LUGS
METHOD
{{ s.n }}
{{ s.t }}
LUG-PITCH RATIOS
{{ r.name }}
{{ r.batter }}
/
{{ r.reso }}
Multipliers applied to the drum's fundamental to get batter / resonant lug pitch. Real drums land anywhere from 1.2× to 2.3× depending on shell depth and head choice — these are starting points.
LIMITS & TOLERANCE
In-tune window is ±{{ tolText }} Hz. Nothing is clamped — the suggested target is wherever the interval lands, and the readout is whatever the head is actually giving. Detection runs {{ rangeText }} with a 0.15 Hz resolution readout; disable any headphone or Bluetooth mic and use the phone's own microphone, roughly 6–10" above the head.
INSTALL
Share → Add to Home Screen. Runs fully offline once installed. Microphone access must be granted again the first time it is opened from the home screen.