Apps in this category may contain mild or occasional cartoon, fantasy or real-life violence, as well as occasional or mild adult, sexually suggestive or horrifying content and may not be suitable for children under 9 years of age.

12+

Apps in this category may contain occasional mild indecent language, frequent or intense cartoon or real-life violence, minor or occasional adult or sexually suggestive material, and simulated gambling, and may be for children under 12 years of age.

17+

You must be at least 17 years old to access this App.

Apps in this category may contain frequent and intense offensive language; Frequent and intense cartoon, fantasy or realistic violence: frequent and intense adult, scary and sexually suggestive subjects: as well as sexual content, nudity, tobacco, alcohol and drugs, may not be suitable for children under 17 years of age.

Polytrome Screenshots

iPhone

About Polytrome

A 5/4 break before the chorus? A tempo change after the intro? Where a normal metronome is driven to it's limits, Polytrome just get's started:

- Programmable time- and tempo changes
- Storing of complete song structures
- Very precise, CoreAudio based playback.

A song is made up of parts that have a time signature and a number of repetitions. Each part may also include a tempo change.

The unique graphical playback screen shows the current beat and the current repetition as segments of a circle. The number of the current beat is also shown in the center.

The Speed can be adjusted with the dial above the beat view. It ranges from 40 to 240 quarters per minute. Tapping in the middle starts and stops the playback. The volume is displayed below the beat view. Tapping on it shows the volume slider.

The time and tempo changes can be stored and recalled as different songs in the settings.

A detailed manual is included.

What's New in the Latest Version 2.3

Last updated on Jul 6, 2020

Old Versions

Export and import of songs
Undo / Redo in the song settings
Alternative sound
Better visual highlighting of the first stroke
The manual is now available offline

Version History

2.3

Jul 6, 2020

Export and import of songs
Undo / Redo in the song settings
Alternative sound
Better visual highlighting of the first stroke
The manual is now available offline

2.2

Nov 7, 2019

Adjustments for iOS 13
Dark Mode for the Settings
Support for larger text size
Layout improvements for larger Screens

2.1.1

Mar 27, 2019

Typo in privacy notice fixed

2.1.0

Mar 4, 2019

When a section of a song is selected, the end of the section is the last part belonging to it and no longer the first part after it.
Privacy Policy added.
Optimizations for bigger screen sizes.
Reworked quick help.
Fix of an error where the tempo on start could be wrong.
Fix of an error where start and end part of a song section could be the same.

2.0.1

Nov 2, 2017

Adjustments for iOS 11 and iPhone X

2.0

Apr 15, 2017

Redesigned Interface
Landscape mode
Improved Usability
Simple measure can be altered directly in Playback
Double Tap on tempo sets 100% when individual tempo is used
The Count in is always the same bar as the first bar in the playback
Sound Output also when the device is muted
Demo Song on first installation

1.2

Jan 21, 2013

Considerably improved precision.
Each part can have it's own tempo defined.
Directly switch between parts in the settings.
Adjustments for Retina Displays
Adjustments for iPhone 5

1.1

Jan 7, 2011

- Time changes can be stored as different songs.
- The playback can be restricted to a certain part of the time changes
- Adjustments for iOS 4.

1.0

Apr 20, 2010

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