It’s springtime, and the sun has begun peeking through the clouds, so music is in the air for sun-starved Seattleites. For locals — and for everyone else — we’re taking a look at the top 10 music-related apps for iPhone in this week’s installment of AppStoreHQ’s regular app roundup for GeekWire.

AppStoreHQ’s AppRank technology combines information from media analysis, collaborative filtering, and social media monitoring to provide a neutral analysis of the hottest and best apps available for major smartphone platforms. By focusing on a broad set of inputs, we avoid the issues caused by rating apps only on easily affected metrics such as download counts or user ratings.

Sonos Sonos Controller (Free – Sonos product required)

Turn your iPhone or iPod touch into a full-fledged Controller for the Sonos Multi-Room Music System. When combined with Sonos ZonePlayers in the rooms of your choice, you can find and play all the music you want, all over your house. Wirelessly.

With Sonos and your iPhone, you can tune in to 100,000 Internet radio stations, shows and podcasts and stream millions of songs and stations from the most popular online music services. Plus, you can play your entire personal music library, like iTunes, in any or every room.

PolyTune PolyTune (Free)

The PolyTune iPhone app is a 1:1 port of the award-winning PolyTune pedal tuner, and PolyTune for iPhone delivers exactly the same features and tuning technology as the pedal version. The pedal version is the fastest way to tune on-stage, whereas the iPhone app is the fastest and most convenient way to tune off-stage. The magic lies in a never before seen approach to tuning aimed at speed, accuracy and ease of use, which allows you to get in tune fast, and back to doing what you love: playing.

Pandora Pandora Radio (Free)

Pandora Radio is your own free personalized radio now available to stream music on your iPhone or iPad. Just start with the name of one of your favorite artists, songs or classical composers and Pandora will create a “station” that plays their music and more music like it.

Already a Pandora user? Even easier. Just log in. Pandora on the iPhone is fully integrated with Pandora on the web. Enjoy all your existing stations – and create new ones right from your iPhone, iPod Touch or iPad.

myTtuner myTtuner (4.99)

myTtuner is both an innovative radio player and a real-time search engine. It allows you to stream music by searching in real time for your favorite songs or artists on free internet radio stations. You can browse and play the content that internet stations are streaming at the moment, and save interesting stations to your favorites for easy access later. Search and browser for title songs and artists.

8tracks 8tracks Radio (Free)

8tracks is handcrafted internet radio, a network of mixes made by people who know and love music. Get the 8tracks iPhone app and you’ll have access to hundreds of thousands of mixes on the go.

App features: Listen to user-curated mixes in any genre or mood; Follow your favorite DJs and play their mixes from your Mix Feed; “Like” your favorite mixes; Search for mixes containing your favorite artists; Browse hundreds of popular tags like alternative rock, jazz, sleep, sad or dubstep.

SoundTracking

SoundTracking (Free)

SoundTracking is an easy, fun and expressive way to share the soundtrack to your life. Whether you’re out with friends at a restaurant, walking outdoors with your headphones on, or just hanging out with the radio on, the SoundTracking app allows you to share your special music moments as they happen. With a few taps of your phone, share a playable song snippet, photo and location all in one SoundTrack. . Features: Capture and share the music moments in your daily life with your friends and followers. Find and follow your friends who are using the app. Identify and easily find the music you are hearing using our search and auto-ID features.

V-Moda V-MODA Musique (Free)

Listen to exclusive mixes from the top DJs around the world anytime, anywhere. Experience V-MODA’s hand-picked DJ sets in high-fidelity, and share your favorite mixes with all your friends. “Like” or “Tweet” what you’re listening to directly from the Now Playing screen. Background streaming & multitasking supported on iOS4 devices. Brand new audio engine, providing enhanced audio quality. Check your Facebook news feed, “like” a comment, compose a message, comment on the station’s posts and/or your friends posts.

AmpliTube AmpliTube (19.99)

Turn your iPhone/iPod Touch into the ultimate mobile guitar and bass multi-effect processor and mobile recording studio! Use the AmpliTube iRig interface adapter (www.amplitube.com/irig) to connect your guitar to your iPhone/iPod/iPad and you are ready to rock!

Play, practice and record anytime, anywhere with world-class guitar and bass ultra-realistic tones and effects, including the official Fender™ tone, plus full multitrack recording capabilities in a convenient mobile app, all from the leader in analog gear modeling software for professional recording studios.

SoundHound SoundHound (Free)

Unlimited song identification! You can ID songs blazingly fast, search by singing, see lyrics, and browse artists to your heart’s content. No monthly limits.

SoundHound is instant music search & discovery. The world’s fastest music recognition: name tunes playing from a speaker in as little as four seconds. The world’s only viable singing and humming recognition. Instant lyrics and artist info for your iPod songs

Rhapsody Rhapsody (Free – subscription required)

Listen to all the music you want on your iPhone, iPod touch or iPad for one low monthly price. And even better, right now new customers can try it free. If you’re already a member, just install the application and start listening.

Rhapsody has over 11 million songs and every genre to choose from. The Rhapsody App even lets you download songs, albums, and playlists directly to your device. So you don’t need an active connection and you’ll save battery life compared to streaming.

Time to get your tunes on!

— Scott Blanksteen, AppStoreHQ, @sib1013

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