Review: Smule Leaf Trombone: World Stage | iLounge

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A-Highly Recommended

Company: Smule

Website: www.Smule.com

Title: Leaf Trombone: World Stage

Price: $1

Compatible: iPhone/3G, iPod touch/2G

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Smule Leaf Trombone: World Stage

Author's pic

By Jeremy Horwitz

Editor-in-Chief, iLounge ()
Published: Wednesday, April 15, 2009
Category: Games

We thought briefly about holding off on reviewing Leaf Trombone: World Stage ($1) for our Weird and Small Apps roundup later this week, but we can't: this app, originally previewed at Apple's iPhone OS 3.0 event, is far too cool to wait on. Developer Smule has taken the iPhone and iPod touch -- already cool devices -- and raised them to all-new levels of amazement with this one-dollar piece of software, enabling users not only to play an instrument, but also to sit as a member of an Idol-style three-judge panel to comment on and rate other users' performances. To call Leaf Trombone brilliant, fun, and amazingly executed is fully accurate; the only things this app could benefit from are greater stability and a wider variety of instruments to play.

Leaf Trombone is, at the core, a musical instrument simulator: a leaf appears on the right side of the screen with an overlapping indicator for where your finger is currently sitting on the instrument; you tap the screen and/or use a connected microphone to play music. In touch mode, you merely tap or hold your finger down on a certain marked portion of the leaf to create short and long notes, while in the iPhone and iPod touch 2G’s wind mode, you both touch the leaf at marked places and blow air either quickly or more consistently into the device’s microphone to play. A connected microphone or mic-equipped headset will work on the second-generation touch, while the iPhone and iPhone 3G can both use their own or attached mics, all three devices registering only the sound of blowing air. Plus and minus arrows on the screen let you shift keys, while a settings menu lets you choose the base key, as well as how much your finger motions will impact the pitch.

Initially, users are presented with three major choices: play a song, join the “World Stage,” or free play, the first and last of which are basically the same save for on-screen prompting and a little background music that are offered in the “play a song” mode. Here, a wheel spins on the bottom left of the screen to provide a background beat for some songs, while 3-D leaves float out as either pulse-like short notes or longer, drawn-out notes to let you know how to properly perform. Free play mode removes the background music and the 3-D leaves, letting you play as well or poorly as you can without guidance.

The plusses and minuses of these play modes are sort of interesting. It quickly becomes obvious that playing the leaf trombone properly can yield some nice enough results, but that this isn’t exactly the most beautiful instrument on the planet: Smule’s earlier Ocarina and plenty of other wind instruments might well sound more pleasing. In fact, there are times when the “play a song” mode’s background music is easier to enjoy than what you’re playing; the leaf trombone can sound whiny, and in the wrong hands, like listening to something you haven’t heard since grade school. But the process of learning how to play is actually fun, and the app includes not only a “popular” songs category but a collection of user-submitted tracks and a search feature to help you find things that interest you. Thanks to a free web-based composition tool, one gets the sense that the collection of music will only grow over time; it’s already neat as-is.

From our perspective, the killer feature of Leaf Trombone is found in the second part: the World Stage. Here, you have the opportunity to live out your American Idol-style fantasies as either a judge, a performer, or a member of the audience. Performing is exactly like the play a song mode, as you’re given the opportunity to choose a song you like, then get prompted with the notes to play. Interestingly, you don’t get judged in real time: instead, the song is recorded as you play, and at the end, you’re allowed to either submit the song to be judged, or withhold it. In either case, performing in this mode costs you a “leaf token;” you get limited tokens, and thus only a few opportunities to be judged, to start.

Judging mode is really, really smart. You need create a username—no password—and then the app lets you serve as a member of a three-judge panel, listening to someone else’s performance and making various comments as it progresses, earning a leaf token when you’ve finished. As the performance goes on, you can pick emoticons to represent your feelings, and type short messages to the two other listeners and performer, who are all listening to the same just previously-recorded track at the same time. At the end, you have the chance to rate the performance from 1 to 10, then make a final comment. The interactivity between judges as the song is playing can be incredibly fun, and a reason that even people without musical performance talent will enjoy this application. If you’re not the judgmental type and just want to listen to someone else play, you can see a list of previously performed tracks, pick one, and then watch as a recorded version of someone else’s performance gets played back, including comments and the rating from judges. All that’s missing from these modes is the opportunity for the performer to comment when it’s all over, and that’s probably a good idea, based on the performances we’ve heard.

Backing these modes up is an in-game Achievements section that rewards you for everything from judging to composing tracks to turning in “epic” or “legendary” performances, as well as a rankings system that highlights top performers, performances, and judges, around the world. Smule amusingly even includes a “debacles” category to let users hear amazingly poor performances if they’re in the mood; trust us when we say that there are plenty to be heard during normal judging, and these will likely continue well into the future.

It’s worth briefly noting a couple of other cool and not-so-cool little things that caught our attention in Leaf Trombone. Once again, Smule has used its rotating model of the Earth, using bright lights to indicate where on the planet its participants are coming from—somehow, this never gets old, and it’s really great to see the globe spin to indicate where the judges and the performer are connecting from. Less than impressive is the app’s stability: though they typically come only in World Stage mode, crashes are too frequent, and there are little signs sometimes during judging that a network connection has lapsed, as the trombone gets stuck on a note and no comments come through. Like seemingly all app developers, Smule has some work to do before this one runs perfectly, and if the iPhone OS 3.0 event is any indication, Leaf Trombone will see further updates to enable additional functionality in the future.

Small issues aside, there’s no doubt that Smule has assembled a truly impressive music application for the iPhone and iPod touch—an inexpensive piece of software that lets you play, judge, or listen to simple audio tracks while interacting with other people from around the globe. While we’d like to see more or better instruments and greater stability during World Stage mode, this app is a true showpiece of both the iPhone OS and a fun way to pass the time. Once content to make cute demo-like lighter and explosion apps for the iPhone, Smule is on its way to becoming one of the world’s best and most creative app developers.

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Editors' Note: iLounge only reviews products in "final" form, but many companies now change their offerings - sometimes several times - after our reviews have been published. This iLounge article provides more information on this practice, known as revving.

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