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ランダムな音楽ジャンルまたは曲の選択
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Music Wheel — A Random Genre, Song, and Playlist Picker
Stuck on the same forty songs for the third year running? Type in some genres, artists, or tracks, give it a spin, and let it hand you something you'd never have queued up yourself. Cryptographically random, works offline, no signup.
From bedroom listening to a packed dance floor — a faster way out of the algorithm rut
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Escape the Same Old Playlist
Streaming services keep feeding you more of what you already played. The wheel does the opposite. Load up jazz, drum-and-bass, fado, whatever — then spin and listen to wherever it lands, not where the recommendations herd you.
Spins With the WiFi Down
Festival campsite, a basement venue, a long flight with no signal? The wheel installs as a web app and runs with zero connection. The picking still works even when streaming won't load a thing.
Load Your Own Songs and Artists
Karaoke shortlist, a band's setlist, the twelve tracks you keep meaning to learn on guitar — type them straight in. The wheel only spins what you give it, so nobody ends up singing a song that isn't on the machine.
End the 'What Do We Put On?' Standoff
Six people in a car, six opinions. Drop everyone's pick on the wheel, tap once, and the argument's over before the next exit. Touch-friendly and quick to load.
Every Track Gets a Fair Shot
A lot of shuffle buttons aren't truly shuffled — they cluster, they repeat, they have favorites. This one pulls from the Web Crypto API, the randomness browsers rely on for security, so the deep cut has exactly the same odds as the obvious hit.
Free, No Account
No subscription, no email, no listening history quietly logged somewhere. Open the page, spin, close the tab. That's the whole deal.
How to Use the Music Wheel
Load the Music
Start from the preset spread of genres — pop, rock, hip-hop, jazz and the rest — or clear it and type your own. Genre names, song titles, artist names, even a whole 'Friday night' playlist label all work.
Shape the Wheel
Add as many entries as you like, rename them, drop the ones nobody's feeling. A wheel of five moody genres plays out very differently from one stuffed with forty party anthems, so build it for the moment.
Spin
Tap the middle. It turns, eases off, and stops on one entry — decided by the algorithm, not by a thumb pretending it landed there fairly.
Play It, or Keep Going
Take what it gave you and hit play. Or pull the winner out and spin again to build a set, a discovery queue, or a night's running order. Earlier picks sit in the history panel.
What People Actually Use the Music Wheel For
Genuine Music Discovery
Recommendation engines circle the same neighborhood. Load a dozen genres you've barely touched — gamelan, bluegrass, shoegaze, highlife — and let the wheel send you somewhere your usual feed never would.
Randomizing What You Practice
Musicians fall into ruts too — same scale, same key, same three songs. Type in scales, keys, or a backlog of tunes to learn, then spin to decide today's drill. The variety is the point.
Keeping a DJ Set Unpredictable
It's easy to lean on the same crowd-pleasers every night. A DJ loads tracks or sub-genres and spins mid-set for a curveball, or runs it before the gig to shake up the running order entirely.
Picking the Next Karaoke Song
Nobody wants to flip through the binder for ten minutes while the mic goes cold. Load everyone's go-to songs, spin, and the singer's up. The slow wind-down even builds a little suspense.
Settling the Party Playlist
When the aux cord becomes a battleground, the wheel plays referee. Each guest adds an artist or genre, you spin for what's next, and the music keeps moving without anyone hijacking it.
Why This Beats Hitting Shuffle — or a Generic Picker
Real Randomness, Not a 'Smart' Shuffle
Your Music, Not a Locked Genre List
No Account, No Listening Profile
ルーレットを回す準備はできましたか？
毎日、公平でランダムな選択をする何千人もの仲間に加わろう。
真にランダムな選択 - アルゴリズムの仕組み
Math.random() を使用する多くのホイール スピナーとは異なり、wheel.expert は暗号的に安全な乱数を生成するためにWeb Crypto API (crypto.getRandomValues()) を使用します。これは、パスワード ジェネレーターなどのセキュリティ クリティカルなアプリケーションで使用されるものと同じ API です。
ウェブ暗号化 API (CSPRNG)
すべての最新ブラウザに組み込まれている暗号的に安全な擬似乱数ジェネレーター (CSPRNG)である crypto.getRandomValues() を使用します。
不偏選択アルゴリズム
すべてのエントリの重みが等しい場合は、 ランダム選択でよくある問題であるモジュロ バイアスを排除するために拒否サンプリング を使用します。これにより、 各エントリが選択される確率が数学的に等しいことが保証されます。重み付けされたエントリでは、確率は割り当てられた重みに比例します。
クライアント側の透明性
すべてのランダムな選択はスピンの瞬間にブラウザ内で行われます。コードはオープンであり、ブラウザーの DevTools 経由で検査できます。重要な景品の場合は、視聴者に対する公平性の証拠としてスピンを画面録画することをお勧めします。
🔍 自分で確認してください: DevTools (F12) を開き、コンソールで乱数の生成を確認します。私たちは window.crypto.getRandomValues() を使用します。これは銀行やセキュリティ アプリケーションで使用されているのと同じ暗号化 API です。
一般的な使用例
- ✓音楽の発見
- ✓プレイリストの作成
- ✓カラオケナイト
- ✓DJチャレンジ
- ✓ジャンル探索
よくある質問
Yes. Wipe the preset genres and type whatever you want spun — 'Bohemian Rhapsody,' a band name, a mood like 'rainy Sunday,' a whole playlist title. The wheel only spins the entries you load, so a karaoke night never coughs up a song nobody can sing.
Genuinely random. It draws from the Web Crypto API, the same source browsers use for security keys, so there's no hidden weighting toward the popular tracks. Unlike a lot of shuffle buttons, the obscure entry has the exact same odds as the favorite.
Spin once, remove the winner, spin again. Each pick drops out of the next round, so a handful of spins gives you a running order with no repeats — useful for a DJ set, a discovery session, or a karaoke lineup.
It does. The music wheel installs as a progressive web app, so after the first visit it runs fully offline. The actual streaming needs a connection, but the picking keeps working at a campsite, a basement gig, or 30,000 feet.
Plenty do. Load your twelve keys, a set of scales, or a backlog of songs you keep meaning to learn, then spin for today's focus. It quietly breaks the habit of grinding the same handful of pieces every session.
Then load just those. A two- or three-entry wheel works fine — 'jazz or funk tonight?' — and the slow wind-down still makes the result land like a real decision instead of a coin you flipped in your head.