Ecoute is a lightweight player which allows you to browse and play your iTunes Library.
Play your music, videos, tv shows, and podcasts in a simple way.
You can also share what you are listening to on Facebook and Twitter, and also on Last.fm. Add missing artwork, discover artists' YouTube links, and much more!
Ecoute also integrates a theme manager for what we call its "Desktop Controller". It's a sweet and customizable controller for your Desktop.

TwistedWave Lite is a very easy to use audio editor.
Create your own iPhone ringtones!
Import audio from YouTube movies directly in TwistedWave, ready to be edited or saved.
TwistedWave Lite supports Audio Unit plug-ins. Use the Audio Units provided by Apple, or find the particular effect you wanted from the hundreds of Audio Units available on the internet.
TwistedWave Lite is similar to TwistedWave, but with more advanced features missing, such as:
- DIRAC technology for pitch shifting.
- Batch processing.
- Support for markers, metadata and VST Plugins.
- Silence detection.
- Effect stacks.
- Support for additional file formats, such as amb, mpg, mp2, mp3, flac, ogg/vorbis, wma, WavPack, Wave64 and video files.

SkyEaterはMacのキーボードを楽器のキーボードに見立てて演奏できるソフトです。
SkyEater PolyはSkyEaterシンセサイザーのポリフォニック版です。
4つまでの音を同時発音できます。

Easily find and delete duplicate songs on iTunes. You can customize which tag to be compared. After search, you can use auto marking to automatically mark duplicate songs for deletion.
You can download free trial at:
http://www.imdeduper.com

MixTape is a simple, beautiful and easy to learn application for making beat matched mixes.
By simply drag dropping the music you already have in iTunes (or from the finder), MixTape adds detected tempo and beats. Tracks are then dragged onto a workspace where they now "snap to grid" along their beats and play in sync. Precisely in sync. Emphasised markers show where musical phrases start and a simple envelope adds that all important final polish to your mixes.
Mixes can then be exported back into iTunes to play on your Mac, iPod or iPhone; or published directly onto the web with no additional accounts, services or software.
Far simpler than either an audio workstation or a DJ app, MixTape embraces the Mac aesthetic to blend in perfectly with your desktop. Finally a short series of video tutorials emphasise 'show' over 'tell' and creative commons licensed demo mixes both show what can be done and how.
Those wanting a more advanced experience, including the ability to play live should check out MixTape Pro - also in the app store.

Find and remove duplicate tracks in your iTunes Library quickly with Tune Sweeper. This powerful tool makes removing duplicate items in your iTunes library a breeze.
Tune Sweeper shows groups of duplicate tracks found in your iTunes library and suggests which tracks to keep based on your preference. i.e. Highest Quality, Latest Played, Latest added etc.
Tune Sweeper also shows all the tracks listed in iTunes that are missing from your hard drive. Tune Sweeper can quickly remove these broken links in your iTunes library with one mouse click.
Using Tune Sweepers powerful search options, you can fine tune how Tune Sweeper scans your music collection.
You can search the results for specific items in your Library.
At a click of a button, Tune Sweeper removes the selected duplicates from iTunes, saving you disk space and cleaning up your music collection. Tracks removed from iTunes are optionally backed up for safe keeping.

Each time you press Play or Next, Concordia plays a unique song, that no one has ever heard before. There are four parts - pad, two melody lines, drums, and sound effects, that work together to create infinite amounts of surprisingly intricate music.
You can describe the style as ambient, classical, New Age-y, experimental, and/or electronic. Tailor the music using simple controls to create your own genre. Or start with a station, like Meditation, Classical, or Electronica, and go from there.
Visit the Concordia Web page to download a working demo, hear songs exported directly from the app, and see sample projects where users have incorporated Concordia songs.
Want to listen to Concordia when you aren’t at your computer? Save a whole album to iTunes with a single menu command. Play it on your iPod. Burn it to a CD.
Royalty free, commercial free. Play Concordia music (live or recorded) in your workplace, store, or club. Use Concordia tracks in your presentations, videos, movies, or games as either temp tracks or the final score.

TwistedWave is a very easy to use audio editor.
Create your own iPhone ringtones!
Import audio from YouTube movies directly in TwistedWave, ready to be edited or saved.
TwistedWave supports Audio Unit and VST plug-ins. Use the Audio Units provided by Apple, or find the particular effect you wanted from the hundreds of Audio Unit or VST plugins available on the internet.
TwistedWave uses the DIRAC Time Stretch/Pitch Shift technology licensed from The DSP Dimension, one of the most advanced algorithms for time-based manipulation of audio material available today.
Use the batch processing to apply the same sequence of effects to a list of files.
Automatically detect silences to split a large file into smaller ones.
TwistedWave works great as an audio converter. It is able to read and export sound files in many formats, including: wav, aiff, au, snd, sd2, mpg, mp2, mp3, mp4, m4r (iPhone ringtones), m4a (iTunes), m4b (audiobooks), aac, caf, flac, ogg/vorbis, wma, WavPack, Wave64. It is also possible to import the sound track from a movie in mov, avi, flv (Flash Video), wmv or mpeg format.

RockStar is a status bar app that makes it easy to rate tracks from your iTunes library without distraction.

Drum machine loaded with classic 8bit drum sounds. Autosave and export your lo-fi creations. Make music, no fuss, no muss.

Music Player X is the premium alternative music player for Mac OS X. Music Player X features automatic loading of your iTunes library and playlists, multiple spectrum visualizors, slowing down and speeding up of music, menu bar integration, Dock integration, media key integration, and even a stunning 3D visualizor. You can optionally show the currently playing song in the Dock, and when you close the music player window the spectrum visualizor is automatically added to the menu bar! You can also use the Back, Next and Play/Pause keys on your keyboard to control Music Player X system wide. The appearance and behavior of Music Player X is fully customizable, and if you want a mini player all you have to do is resize the window. Featuring far more customizability and integration than other music players, Music Player X provides a far more entertaining experience with your music and movies and is the music player that should have came with your Mac!
*Please note that Music Player X will only play DRM free music and videos!*

Before auditioning to be the next international singing idol, Simon says**: Check your pitch with eTuner!
For those with instrumental talent, eTuner has also been developed and tested to work automatically with a variety of wind, brass, and string instruments.
eTuner is an interactive chromatic tuning application for Mac OS X. This application uses the quality audio and fine display capabilities of your Mac to determine and display musical pitch information as you play an instrument, hum, or sing a note.
In addition to instrument tuning, eTuner can also be used for scale studies and checking intonation as you play an instrument or sing.
eTuner features:
? Graphical note display.
eTuner displays the name of the note that is closest to pitch being detected as well as the amount of variance between the detected pitch and the displayed note, relative to the next higher or lower pitch. Also displayed is an indication of whether the pitch is High, Low, or OK, in relation to the note name being displayed.
? Simple, easy to read display.
The note display has been designed for easy interpretation when appearing anywhere within the musician's field of vision. eTuner allows the musician’s focus to remain primarily on the music stand, while reinforcing interpretation of peripheral vision cues.
? Chromatic Tuning with User Selectable Scale Key.
eTuner displays all twelve pitches in an octave. The key settings feature allows the user to select which note names will be displayed when pitches of the selected key are detected. Selecting a minor key will also display note names for the harmonic and melodic ascending and descending scales. Notes that are not in the selected key are displayed as what is customary in the chromatic scale.
? NEW! Support for transposed instruments.
eTuner will display the "written note" for C, B♭, E♭, and F instruments. Select the transposition from the Instrument menu.
? Calibration settings.
The calibration setting provides the flexibility to adjust from the standard tuning of a'=440Hz.
? Frequency and Octave Display
The frequency and octave number can be optionally displayed with the note name.
? Input Level Meter and Volume
eTuner displays the current input device, channel, sample rate, and sound level. A slider control adjusts the input volume for the device. This allows the user to determine if they are producing a tone loud enough for eTuner to analyze.
? Audio System Preferences
Select input from any built-in microphone, or external audio device connected to your Mac.
**Unlike some critics, eTuner will will remain politely silent if tone quality is not sufficient to determine a pitch.

Capture the sound of your hardware and software synths, and convert them automatically to sampled instruments for your sampler. Just connect your synthesizer, set a few parameter, click Start, and the sound will be automatically sampled and standard EXS24/Kontakt/Structure/Reason NNXT files will be created, with no editing required.