Theory, Practice!  for InFocus Bingo 20 (M425)

Theory, Practice!

V2.8 Stable Version

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  • Theory, Practice!  for InFocus Bingo 20 (M425)
  • Theory, Practice!  for InFocus Bingo 20 (M425)


A simple music app for ear training and interval practice

InFocus Bingo 20 (M425) smartphone was launched in March 2016. The phone comes with a 4.50-inch touchscreen display with a resolution of 850 pixels by 480 pixels. InFocus Bingo 20 (M425) price in India starts from Rs. 4,750.

The InFocus Bingo 20 (M425) is powered by 1.5GHz quad-core Spreadtrum SC9830 processor and it comes with 1GB of RAM. The phone packs 8GB of internal storage that can be expanded up to 64GB via a microSD card. As far as the cameras are concerned, the InFocus Bingo 20 (M425) packs a 8-megapixel primary camera on the rear and a 5-megapixel front shooter for selfies.

The InFocus Bingo 20 (M425) runs Android 5.1 and is powered by a 2300mAh non removable battery. It measures 136.80 x 67.00 x 10.82 (height x width x thickness) .

The InFocus Bingo 20 (M425) is a dual SIM (GSM and GSM) smartphone that accepts Nano-SIM and Nano-SIM. Connectivity options include Wi-Fi, GPS, Bluetooth, USB OTG, FM, 3G and 4G (with support for Band 40 used by some LTE networks in India). Sensors on the phone include Compass Magnetometer, Proximity sensor, Accelerometer and Gyroscope.


How to download Theory, Practice! form InFocus Bingo 20 (M425)?

  1. Check the Android version to verify compatibility of Theory, Practice! with InFocus Bingo 20 (M425).
    Find Android version: go to "Settings" - "About the phone" - "Android version". Make sure Theory, Practice! is compatible with InFocus Bingo 20 (M425).
  2. Click the download button to download Theory, Practice! in InFocus Bingo 20 (M425).
  3. Once the download and installation are complete, find Theory, Practice! in your home screen and tap the icon to open it.

App Reviews for InFocus Bingo 20 (M425)

  • A Google User
    Great app!
    Looking forward to using this for my aural perception class. Only addition I would like is the choice to play both of the notes in the interval together.
  • A Google User
    Intermediate chords triggers major/minor chords but no option to select it.....
  • A Google User
    Good app! But guys if your going to be critical, know your music, dont ask them for more than 8 intervals there are only 8 :-) and only one octave.
  • ram daran
  • A Google User
    Wonderful for chords. Thanks, and blessings with the baby!
  • A Google User
    This app is amazing, it's helping do awesome in AP Music Theory so if you need help in scales, intervals or chords then choose this app, and It's free!!!
  • Louis Taylor
    A shame development has stopped :/. Integrating Interval/chord/scale training from standard notation as well as audio would be very useful. Amazing app, but slightly limited.
  • A Google User
    Works great on HTC amaze with gingerbread 2.3.4!
  • A Google User
    Helped me get into the most prestigious university for music in the country
  • A Google User
    Very nice and useful app
  • Wayne Tan
    Make it better
    Try focus on the players least plot a graph or draw a chart to show our progress it anything....try adding more intervals like minor third or augmented seventh....dividing into different levels office difficulty may also be helpful...instead of only scales or intervals or chords......why dont we have a test for pitch as to help us pitch perfect..... besides do make it more colorful instead of only black grey and white.....instead of piano sounds .....sounds of violin Viola cello us good also.
  • Esteban Ruiz
    If you are a student and need to practice for the Uni xams this app is great. You can practice all basic theory topics and keep improving your skills
  • A Google User
  • A Google User
    Would be nice to be able to replay to review the ones you missed. Also the questions don't seem to be randomized. I often get the same interval repeat
  • Jesús Martínez
    Complete App
    Very useful for ear training everywhere!!!
  • A Google User
    Ugly but functional ui. No complaints.
  • A Google User
    Only thing missing for five stars is the possibility to reexamine those intervals that aren't correct
  • A Google User
    Great, but change the olive background, add a counter, harmonic intervals, and improve sound quality.
  • Cameron Orth
    Great for free
    Could use more types of scales but it's perfect for my purposes.
  • A Google User
    if diminished chords were also added that would help greatly. this app is a great help for ear training though!
  • Keith Neilson
    Shame it's not being developed any more.
    I'm no programmer or I would at least have a look at continuing development of this app. It's sooooo useful and has done wonders for my singing.
  • Asia Cooper
    It was nice
  • Sochipem Kashak
    Good stuff
  • A Google User
    This app is great! If you put the level as expert you get many more chords. First time rating an app so i really like it. Thanks to the developer!
Theory, Practice!

Theory, Practice!