2XB303 Acid Bass Loop Maker is a creative bass synth sequencer designed for making catchy electro melodies and funky pure acid techno basslines. It brings the essence of the acid house music scene right to your device. This app is exclusive to iOS, offering a modern alternative to the popular TB-303 clone known as Rebirth from a decade ago.

With the LIVE CONTROL feature, you can easily trigger and transpose both sequences and a new built-in pad layer. This makes it straightforward to record audio loops and export them whenever you're ready. If you're new to the app, you can check out video tutorials that show you how to use it effectively. You’ll be amazed at what you can create with 2XB303.

The app lets you create a variety of sequences, including electro house, techno, and EDM, using standard step functions. These are similar to those found in other renowned sequencers, like the Roland SH 101 synthesizer. You can add a built-in pad layer that follows pitch. Plus, there's support for MIDI transpose and trigger, allowing you to bring even more versatility to your music.

One of the neat features of 2XB303 is random sequence generation, which adds an element of surprise to your music. You can easily capture what you hear and export it using options like AudioShare, Audio-Copy, Email, or the iTunes Shared Folder. The app supports Audiobus 3 routing, Ableton Link support, and Inter App Audio (IAA), enhancing your ability to mix and collaborate with other music apps.

For users who love tweaking their sounds, you can adjust the cut-off and decay settings, and use glide and accent for that classic acid growl. The sound has been compared to the Cyclone TT-303 synthesizer but has been modified to allow for more sound shaping than just making bass sounds. With options like harmonic waves, noise, LFO, and glide speed, 2XB303 enables you to create dynamic electronic patterns that can elevate your music.

The LIVE CONTROL feature also allows for fun keyboard control tricks. You can transpose both channels while playing, and even trigger sequences using the synth pad layers. With saved sequence switching, you can quickly switch to any sequence you have stored, which is perfect for building live tracks or crossfading between different programs. There is also a "Hold settings" option, so you can lock in your effect settings while you play.

In MOD mode, you can control the low-pass cut-off and pitch using LFO auto control. This feature lets you create a vintage synthesizer effect by subtly detuning with low speed or ramping up for rapid changes in pitch.

When it comes to effects, 2XB303 includes an overdrive global effect that adjusts threshold, ratio, and gain. It also features a tempo-synced echo effect that adds feedback and wetness to your sounds. To save your work, you can use the "SAVE ALL" function, which will store your current settings in memory when not in use.

Syncing is made simple with Ableton Link, which allows you to connect with other apps for precise timing. You can use MIDI sync with external devices, virtual tools, or Audiobus. The 2XB303 can act as either a master or a slave, ensuring versatility in your setup. The virtual MIDI in feature is always active, allowing you to send and receive MIDI clock signals for seamless integration.

Recording audio is flexible, with a fixed length defaulting to 32 steps, which you can change in the settings. You can arm the sampling feature with a flashing "CAPTURE" to start recording from step one. Once you’re done, you can listen to your super cool sampled acid synthesizer loop.

The app’s Audiobus 3 and IAA support means you can route audio to mix or record into other applications, including Apple's Garageband. Garageband can also sync your sequences, making it a great choice for multi-track recording.

When you want to save your work, simply press "Save All." The app will indicate when saving is complete, allowing you to select your destination for the saved file. Whether you are capturing super cool loops or exploring various EDM music creativity, 2XB303 Acid Bass Loop Maker is a must-have tool for music lovers and creators alike.