Extrack vs AccordView

Play along with your favorite tracks. Extrack, an app that lets you split instruments and analyze chords, instantly. -You can use the basic features for free with no time limit. Subscribe, and you can unlock more advanced features. ・Separate songs into different instrument parts (vocal, guitar, piano, bass, drums, wind instruments) and freely adjust their volumes. ・Practice "minus one" style (mute one part and play it yourself). ・See the chords and how to play them on guitar or piano in real time while the song plays. ・Change the tempo, keys, or repeat specific sections easily. The app is very easy to use, even for beginners. ■When you feel like jamming with a band! -Load any song from your smartphone or tablet, and Extrack automatically separates it into each instrument part — such as guitar, drums, bass, piano, and wind instruments like saxophone. You can adjust the volume of each part freely, just the way you like. -If you’re a guitarist, turn down the other instruments and focus on the guitar sound to pick up even the most subtle phrase by ear. Then, switch the mix up, mute the guitar part and jam along with the rest of the band. It’s the closest thing to being on stage with your favorite artists! Want to tighten your rhythm? Turn up the drums and bass for focused practice. Or mute the vocals and enjoy singing along karaoke-style with real band sound! ■When you feel like jamming to that song you love! -Extrack automatically analyzes and displays the chord progression of any song. Even if you’re not good at figuring out chords by ear, you can enjoy jamming while watching the chords in real time. -It also shows how to play each chord on guitar or piano visually so even beginners who can’t read sheet music can feel confident. -Just load a song, and you can start practicing right away! If the song has chords that are too difficult, simply change the key or set a capo to make them easier to play. ■When you’re stuck on a part you’re having trouble with. -Want to play just one phrase over and over? -Want to slow down the tempo and practice carefully? -With Extrack, you can do it all easily. Simply select the section you want to repeat, skip by measure, or adjust the playback speed to match your pace. Plus, Extrack comes with a built-in metronome that automatically syncs with the song’s tempo, perfect for training your timing and rhythm. ■Just load your favorite song, and enjoy practicing with all of Extrack’s features. -Works with : MP3, AAC, FLAC, and more. -Add songs from iTunes or your CDs and start playing! - You can even import songs directly from cloud storage services.

AccordView shows a MIDI file the way an accordionist sees it: as buttons. Press play, and the buttons light up in time with the music — melody on the right hand, bass and chords on the left. Before you work out the fingering from a score, you can simply watch which buttons are pressed, and when. BOTH SIDES OF THE INSTRUMENT • Melody board: a five-column chromatic button accordion in C-system, with the chromatic scale running diagonally, exactly as it sits on the real thing. • Bass board: a Stradella layout — two bass columns plus major, minor, seventh and diminished. FINGERING, CHOSEN FOR YOU On a button accordion the same note appears in more than one column. AccordView looks at the phrase currently playing, picks the three adjacent columns that keep your hand most compact, and lights those buttons brightly. Duplicate buttons outside that band stay faint, so the choice between them is obvious at a glance. SEE THE ACCOMPANIMENT AS ONE SHAPE On the left hand, AccordView works out the chord from the notes being played and links the bass note to its chord button as a single connected blob. The oom-pah — and the oom-pah-pah — becomes visible as the movement of your hand. The accompaniment period is detected automatically, or you can set it by hand anywhere between 0.5 and 6 beats. BUILT FOR PRACTISING • Playback speed from 0.25× to 2×, for taking a fast passage slowly. • A seek bar, to jump straight back to the bar you're working on. • Octave shift of ±3, to match the range of your own instrument. • Track selection: choose which track of a multi-track MIDI feeds each board. • Mirror and vertical flip, to match how you hold the instrument — or how it looks facing a teacher. Button labels stay the right way up either way. ON EVERY DEVICE iPhone, iPad and Mac. iPad and Mac show both boards side by side; iPhone swipes between them. HOW TO USE IT 1. Tap Open and choose a MIDI file (.mid or .midi) 2. Press play 3. Follow the lights Audio plays through the built-in sound source on your device. No network connection is needed, and files you open are never sent anywhere.