A simple and smart reminder with some more.
Piano Chords

see many different chords and scales on a virtual piano keyboard.
Musical Note Tuner

Musical Note Tuner will replace your old guitar tuner. Just play any note.
Fairy Guitar Tuner

Fairy Tuner will flutter your wings whenever your guitar is in need of tuning.
Record Player Tuner

Record Player Tuner will replace your old tuner. Just pluck a string to start.
Boombox Guitar Tuner

Boombox Guitar Tuner will get the party started. Just play a note, and it shows.
Fire Guitar Tuner

Fire Guitar Tuner tunes your guitar in seconds. This tuner tunes makes it easy
Penguin Tuner

Penguin Tuner makes tuning your guitar fly by! Just play a note.
Guitar Tuners

Guitar Tuners lets you tune your guitar in seconds for free using a microphone.
Effie for Mac

the combination of mind mapping and list-making is the belle of the ball. use ef