#### Reveler's Concertina
Wondrous item, instrument, rare (requires attunement by a bard)
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While holding this concertina, you gain a +2 bonus to the saving throw DC of your bard spells.
As an action, you can use the concertina to cast *Otto's irresistible dance* from the item. This property of the concertina can't be used again until the next dawn.
If you have proficiency with a given musical instrument, you can add your proficiency bonus to any ability checks you make to play music with the instrument. A bard can use a musical instrument as a spellcasting focus. Each type of musical instrument requires a separate proficiency.
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*See the Tool Proficiencies entry for more information.*
Proficiency with a musical instrument indicates you are familiar with the techniques used to play it. You also have knowledge of some songs commonly performed with that instrument.
***History.*** Your expertise aids you in recalling lore related to your instrument.
***Performance.*** Your ability to put on a good show is improved when you incorporate an instrument into your act.
***Compose a Tune.*** As part of a long rest, you can compose a new tune and lyrics for your instrument. You might use this ability to impress a noble or spread scandalous rumors with a catchy tune.
##### Musical Instrument
| Activity | DC |
|------------------|:---:|
| Identify a tune | 10 |
| Improvise a tune | 20 |
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#### Reveler's Concertina
Wondrous item, instrument, rare (requires attunement by a bard)
---
While holding this concertina, you gain a +2 bonus to the saving throw DC of your bard spells.
As an action, you can use the concertina to cast *Otto's irresistible dance* from the item. This property of the concertina can't be used again until the next dawn.
If you have proficiency with a given musical instrument, you can add your proficiency bonus to any ability checks you make to play music with the instrument. A bard can use a musical instrument as a spellcasting focus. Each type of musical instrument requires a separate proficiency.
---
*See the Tool Proficiencies entry for more information.*
Proficiency with a musical instrument indicates you are familiar with the techniques used to play it. You also have knowledge of some songs commonly performed with that instrument.
***History.*** Your expertise aids you in recalling lore related to your instrument.
***Performance.*** Your ability to put on a good show is improved when you incorporate an instrument into your act.
***Compose a Tune.*** As part of a long rest, you can compose a new tune and lyrics for your instrument. You might use this ability to impress a noble or spread scandalous rumors with a catchy tune.
##### Musical Instrument
| Activity | DC |
|------------------|:---:|
| Identify a tune | 10 |
| Improvise a tune | 20 |
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