Here are some key points from your text:

1. Drum Pad Machine is an app for Android that allows users to produce mixtuses (mix tapes), record sounds, compose tracks, and much more.

2. The app has libraries of chords, sound effects, piano, and guitar so you can mix beats with appropriate chords.

3. It's not a full replacement for GarageBand but it helps learn basic beat-making skills like melodies, mixing etc.

4. BandLab is another similar music editing app that allows users to record, edit & create multi-track music using various creative effects like beats, vocals, loops and hundreds of sound packs (for free).

5. It almost matches the level of GarageBand in terms of music editing and launchpad features.

6. Walk Band is an Android app for creating music from scratch which has all your needs covered on most fronts.

7. The app allows you to record your voice, mix it with a synthesizer & edit tracks as per requirement.

8. Additionally, Walk Band supports connecting USB MIDI peripheral keyboards via smartphones and will detect them automatically once connected.

9. In terms of instruments available within the app - there are pianos (both solo & chords), keyboard, drum pads etc., all working perfectly fine in both modes mentioned above.

10 Lastly, WalkBand has been recognized as an Editor's Choice by Google Play Store further cementing its position amongst other top-notch music creation apps out there today.

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