# Speldosa — Wintergatan Music Box

> Digital music box instrument plugin with four sound models and reverb. (iPhone/iPad app by Klevgrand Produkter AB.)

- Source: https://appshunter.io/ios/app/speldosa/id6446171628 (this page in markdown: same URL + `.md`)
- Developer: [Klevgrand Produkter AB](https://appshunter.io/developer/1118902192)
- Category: Music
- Price: $9.99
- Rating: 4.80/5 from 28 App Store ratings · 29 written reviews indexed
- Age rating: 4+
- Requires: iOS 13.0 · 15 MB
- Languages: American English
- Released: 2023-03-23
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/speldosa/id6446171628/reviews.md

## What is Speldosa?

Speldosa (Wintergatan Music Box) is an Audio Unit instrument, the result of a unique collaboration between Klevgrand and the Swedish artist Wintergatan/Martin Molin. Wintergatan has primarily worked in the physical world (the Marble Machine is probably the most astonishing example), while Klevgrand has performed its craft within the digital sphere. When these two worlds now meet, the result is something that both visually and aurally inspires the creation of new compelling melodies.
Speldosa (Swedish for “Music Box”) is the essence of the shared beliefs of Klevgrand and Wintergatan, and their fascination with minimalism. A simple melody played on a music box can contain an equal amount of emotional power as any symphonic work. There is something about the music box sound that never ceases to fascinate.
The instrument itself has been meticulously recorded by Wintergatan and transformed into a playable digital instrument plugin. It features four different models (Modern, Vintage, Antique, and Eternal = Reversed), two different Room models, and an algorithmic reverb.

Wintergatan about Speldosa:
"I created the sound by sampling a music box using an acoustic guitar as resonance box. I chose the best samples and it was instant magic. The Music Box went on to become the sonic signature for my two bands, Detektivbyrån and Wintergatan, both recognised for their unique sound. The Speldosa has been the secret sauce in my music career and i hope other musicians finds it as useful as i have.
There is a special quality to this exact music box sound that lifts it above the novelty feeling of a toy and turns it into a real music instrument. It just sounds so good, that’s really it. And it is a sound that makes you write music instantly - the music comes from the sound itself.
During the collaboration with Klevgrand, when they sent me the first beta version of the plugin, i ended up playing around with the sound for three hours, losing track of time. I wrote three songs that day when i was scheduled to actually do something else. That’s what the sound does to me, and i think it will do the same for others."

Features:
- Four different music box characters
- Two room ambiences
- Spacious reverb
- Optional vibrato
- Output level

Speldosa works both as a standalone app and as an AUv3 plugin.
Check out the product web page for more info, sound examples and a user manual.
Feedback or suggestions? Drop us a mail: support(at)klevgrand.se or @klevgrand on Twitter.

## Key features

- Four music box sound models
- Two room ambiences
- Algorithmic reverb
- Optional vibrato
- Standalone app and AUv3 plugin

## Recent user reviews (10 of 29)

All indexed reviews: https://appshunter.io/ios/app/speldosa/id6446171628/reviews.md

### 5/5 — Einfach gut!

*2026-07-12*

👆

### 5/5 — I love it

*2026-05-24*

It’s a nice little synth that does exactly what it says it does. If you read the description and think, “I bet I’d like this”, you probably will. It’s lovely.

### 5/5 — 가장 좋아하는 악기

*2025-02-03*

내 영혼에 스며드는 천사의 눈물 소리

### 3/5 — Attack?

*2024-11-20*

Wenn der ˋAttack-Slider´, da ist, gibt es fünf Sterne.
Ansonsten eine sehr entspannte App!

### 5/5 — Awesome!

*2024-11-20*

I LOVE THIS APP!!! You should make the musical sounds that’s on the original Marble Machine!!!!!

### 5/5 — Beautiful Sounds

*2024-11-20*

The damper control is a great addition.

### 1/5 — App is not usable on IPhone SE 2nd gen.

*2024-05-19*

I don’t know how the app is supposed to look but apparently it’s not possible to use it because the all screen size of the SE was not factored in. I got the keyboard at the bottom and some midi settings at the top and the rest of the app is blank.

There is no way to navigate in any way. It looks like it’s supposed to be used with iPad.
Will refund for now and use the PC app.

### 2/5 — Bluetooth midi barely works and crashes

*2024-05-13*

I’m using a CME xkey air 37 Bluetooth midi controller. When I try using speldosa with this controller, pressing keys sometimes results in no sounds. Also if I play too many notes at once (usually 4 or 5) the app crashes. I love the sounds this app makes and I bought a new iPad to use this app for live performance. But because it keeps crashing and is sometimes non responsive to my playing I unfortunately can’t use it. I tried sending an email to support but got a “we will get back to you” response. I will amend my review if this gets solved or I get an answer!

### 2/5 — 全然鳴らなかった

*2024-03-21*

ダウンロードしても全然音が鳴らず、鍵盤をタップしても鳴らず
再起動やらインストールし直しやら、色々試してみて、やっと音が鳴るように…
アプリがとても不安定で、まだまだ使い物にならないけど、オルゴールの音は良いです
ただそれだけなので、今後アプリの挙動の安定に期待します
また、何かしらの音楽が自動で鳴ってくれると嬉しいです

### 5/5 — Simple but very useful

*2023-12-17*

This is an interesting sound for improving and creating melodies or chord progressions. It has a special clear harmonic feeling while jamming around with it.

## Frequently asked questions about Speldosa

### What is Speldosa?

Speldosa is a digital instrument plugin that emulates the sound of a music box. It was created through a collaboration between Klevgrand and the artist Wintergatan, offering four distinct music box characters and various sonic enhancements.

### What are the key features of Speldosa?

Key features include four different music box sound models (Modern, Vintage, Antique, Eternal), two room ambiences, a spacious reverb, optional vibrato, and output level control. It can function as a standalone app or an AUv3 plugin.

### How much does Speldosa cost?

Speldosa is a paid application. The exact price can be found on the product's web page or in the app store where it is available.

### What devices is Speldosa compatible with?

Speldosa works both as a standalone application and as an AUv3 plugin, indicating compatibility with iOS and macOS devices that support Audio Unit v3 plugins.

### Who is Speldosa intended for?

This app is designed for musicians, composers, and sound designers who are looking for a unique and emotionally resonant sound to inspire their creative work. Its distinctive music box sound can add a special quality to various musical genres.

## Version history (last 3 releases)

### 1.0.3 — 2024-11-20

Added "Damp" slider

### 1.0.1 — 2023-03-23

Everything is extremely nice now!

### 1.0 — 2023-03-20

No release notes.

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All apps by Klevgrand Produkter AB: https://appshunter.io/developer/1118902192

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*