INDEPENDENT SOFTWARE · NASHVILLE, TN

Musicians building
tools for musicians.

From the practice room to the stage.
We make the tools we wish we’d always had.

Meet our first app
OUR FIRST APP · PLANNED FOR 2027

Chart Shark.

In development

One band. One song.
Your way to read it.

Keep everyone on the same song, with a chart that makes sense to each player. Chart Shark brings personal chart formats, band sharing, and automatic chart creation together.

01 / YOUR FORMAT

Read it your way.

Choose the chart format that works for you, from Nashville Numbers to SharkChart. Each musician gets their own preferred view.

02 / BAND MODE

Call the song. Share the chart.

When one band member opens a chart, it’s pushed to everyone’s phones. The whole band follows the same song, in each player’s chosen format.

03 / SHARKCHART

Know when the chord changes.

SharkChart takes chords over lyrics a step further. Beat markers and measures give you a sense of time, so you can see where each chord change lands.

04 / AUDIO TO CHART

Start with the recording.

Upload an audio file and our cloud service automatically generates a chart, giving you a starting point for the next rehearsal or gig.

NEXT ON THE SETLIST

LiveStems.

In development

Less figuring it out.
More playing it.

Get inside the songs you want to learn. Separate a track into individual parts right on your device, then make every practice session your own.

LiveStems desktop development preview showing separate drum, bass, instrument, and vocal waveforms with mixing and playback controls
DESKTOP PREVIEW Work in progress
01 / SEPARATE

Hear every part.

Near real-time stem separation, without uploading your tracks for cloud processing.

02 / PRACTICE

Work at your pace.

Loop the tricky bits. Slow things down. Change the key or fine-tune a recording to your instrument.

03 / RECORD

Capture your progress.

Audio and video recording help you hear and see how your playing is coming along.

LiveStems mobile development preview in landscape, showing colored bass, vocal, instrument, and drum tracks
MOBILE PREVIEW The same focus. A smaller screen.
FROM NASHVILLE, WITH PURPOSE

Built between
soundchecks.

We’re Bryce and Jon.
Musicians first. App builders, too.

We play Nashville’s Broadway and stages across the country. Southpaw Apps grew out of the ideas we kept coming back to on the gig: better ways to learn the set, prepare for the show, and make music together.

Now we’re turning those ideas into tools for the wider musician community.