diff --git a/app/javascript/mastodon/features/account_gallery/components/media_item.js b/app/javascript/mastodon/features/account_gallery/components/media_item.js
index 9eb4ed0d3..c9a7af7f7 100644
--- a/app/javascript/mastodon/features/account_gallery/components/media_item.js
+++ b/app/javascript/mastodon/features/account_gallery/components/media_item.js
@@ -61,57 +61,9 @@ export default class MediaItem extends ImmutablePureComponent {
     const width  = `${Math.floor((displayWidth - 4) / 3) - 4}px`;
     const height = width;
     const status = attachment.get('status');
-    const title = status.get('spoiler_text') || attachment.get('description');
+    const title  = status.get('spoiler_text') || attachment.get('description');
 
-    let thumbnail = '';
-    let icon;
-
-    if (attachment.get('type') === 'unknown') {
-      // Skip
-    } else if (attachment.get('type') === 'audio') {
-      thumbnail = (
-        <span className='account-gallery__item__icons'>
-          <Icon id='music' />
-        </span>
-      );
-    } else if (attachment.get('type') === 'image') {
-      const focusX = attachment.getIn(['meta', 'focus', 'x']) || 0;
-      const focusY = attachment.getIn(['meta', 'focus', 'y']) || 0;
-      const x      = ((focusX /  2) + .5) * 100;
-      const y      = ((focusY / -2) + .5) * 100;
-
-      thumbnail = (
-        <img
-          src={attachment.get('preview_url')}
-          alt={attachment.get('description')}
-          title={attachment.get('description')}
-          style={{ objectPosition: `${x}% ${y}%` }}
-          onLoad={this.handleImageLoad}
-        />
-      );
-    } else if (['gifv', 'video'].indexOf(attachment.get('type')) !== -1) {
-      const autoPlay = !isIOS() && autoPlayGif;
-      const label    = attachment.get('type') === 'video' ? <Icon id='play' /> : 'GIF';
-
-      thumbnail = (
-        <div className={classNames('media-gallery__gifv', { autoplay: autoPlay })}>
-          <video
-            className='media-gallery__item-gifv-thumbnail'
-            aria-label={attachment.get('description')}
-            title={attachment.get('description')}
-            role='application'
-            src={attachment.get('url')}
-            onMouseEnter={this.handleMouseEnter}
-            onMouseLeave={this.handleMouseLeave}
-            autoPlay={autoPlay}
-            loop
-            muted
-          />
-
-          <span className='media-gallery__gifv__label'>{label}</span>
-        </div>
-      );
-    }
+    let thumbnail, label, icon, content;
 
     if (!visible) {
       icon = (
@@ -119,6 +71,60 @@ export default class MediaItem extends ImmutablePureComponent {
           <Icon id='eye-slash' />
         </span>
       );
+    } else {
+      if (['audio', 'video'].includes(attachment.get('type'))) {
+        content = (
+          <img
+            src={attachment.get('preview_url') || attachment.getIn(['account', 'avatar_static'])}
+            alt={attachment.get('description')}
+            onLoad={this.handleImageLoad}
+          />
+        );
+
+        if (attachment.get('type') === 'audio') {
+          label = <Icon id='music' />;
+        } else {
+          label = <Icon id='play' />;
+        }
+      } else if (attachment.get('type') === 'image') {
+        const focusX = attachment.getIn(['meta', 'focus', 'x']) || 0;
+        const focusY = attachment.getIn(['meta', 'focus', 'y']) || 0;
+        const x      = ((focusX /  2) + .5) * 100;
+        const y      = ((focusY / -2) + .5) * 100;
+
+        content = (
+          <img
+            src={attachment.get('preview_url')}
+            alt={attachment.get('description')}
+            style={{ objectPosition: `${x}% ${y}%` }}
+            onLoad={this.handleImageLoad}
+          />
+        );
+      } else if (attachment.get('type') === 'gifv') {
+        content = (
+          <video
+            className='media-gallery__item-gifv-thumbnail'
+            aria-label={attachment.get('description')}
+            role='application'
+            src={attachment.get('url')}
+            onMouseEnter={this.handleMouseEnter}
+            onMouseLeave={this.handleMouseLeave}
+            autoPlay={!isIOS() && autoPlayGif}
+            loop
+            muted
+          />
+        );
+
+        label = 'GIF';
+      }
+
+      thumbnail = (
+        <div className='media-gallery__gifv'>
+          {content}
+
+          <span className='media-gallery__gifv__label'>{label}</span>
+        </div>
+      );
     }
 
     return (
@@ -126,13 +132,11 @@ export default class MediaItem extends ImmutablePureComponent {
         <a className='media-gallery__item-thumbnail' href={status.get('url')} onClick={this.handleClick} title={title} target='_blank' rel='noopener noreferrer'>
           <Blurhash
             hash={attachment.get('blurhash')}
-            className={classNames('media-gallery__preview', {
-              'media-gallery__preview--hidden': visible && loaded,
-            })}
+            className={classNames('media-gallery__preview', { 'media-gallery__preview--hidden': visible && loaded })}
             dummy={!useBlurhash}
           />
-          {visible && thumbnail}
-          {!visible && icon}
+
+          {visible ? thumbnail : icon}
         </a>
       </div>
     );
diff --git a/app/javascript/mastodon/features/account_gallery/index.js b/app/javascript/mastodon/features/account_gallery/index.js
index de481075c..fc5aead48 100644
--- a/app/javascript/mastodon/features/account_gallery/index.js
+++ b/app/javascript/mastodon/features/account_gallery/index.js
@@ -101,9 +101,9 @@ class AccountGallery extends ImmutablePureComponent {
 
   handleOpenMedia = attachment => {
     if (attachment.get('type') === 'video') {
-      this.props.dispatch(openModal('VIDEO', { media: attachment, status: attachment.get('status') }));
+      this.props.dispatch(openModal('VIDEO', { media: attachment, status: attachment.get('status'), options: { autoPlay: true } }));
     } else if (attachment.get('type') === 'audio') {
-      this.props.dispatch(openModal('AUDIO', { media: attachment, status: attachment.get('status') }));
+      this.props.dispatch(openModal('AUDIO', { media: attachment, status: attachment.get('status'), options: { autoPlay: true } }));
     } else {
       const media = attachment.getIn(['status', 'media_attachments']);
       const index = media.findIndex(x => x.get('id') === attachment.get('id'));
diff --git a/app/javascript/mastodon/features/audio/index.js b/app/javascript/mastodon/features/audio/index.js
index a49489257..2f85ebb7e 100644
--- a/app/javascript/mastodon/features/audio/index.js
+++ b/app/javascript/mastodon/features/audio/index.js
@@ -37,6 +37,7 @@ class Audio extends React.PureComponent {
     backgroundColor: PropTypes.string,
     foregroundColor: PropTypes.string,
     accentColor: PropTypes.string,
+    autoPlay: PropTypes.bool,
   };
 
   state = {
@@ -259,6 +260,14 @@ class Audio extends React.PureComponent {
     this.setState({ hovered: false });
   }
 
+  handleLoadedData = () => {
+    const { autoPlay } = this.props;
+
+    if (autoPlay) {
+      this.audio.play();
+    }
+  }
+
   _initAudioContext () {
     const context  = new AudioContext();
     const source   = context.createMediaElementSource(this.audio);
@@ -336,7 +345,7 @@ class Audio extends React.PureComponent {
   }
 
   render () {
-    const { src, intl, alt, editable } = this.props;
+    const { src, intl, alt, editable, autoPlay } = this.props;
     const { paused, muted, volume, currentTime, duration, buffer, dragging } = this.state;
     const progress = (currentTime / duration) * 100;
 
@@ -345,10 +354,11 @@ class Audio extends React.PureComponent {
         <audio
           src={src}
           ref={this.setAudioRef}
-          preload='none'
+          preload={autoPlay ? 'auto' : 'none'}
           onPlay={this.handlePlay}
           onPause={this.handlePause}
           onProgress={this.handleProgress}
+          onLoadedData={this.handleLoadedData}
           crossOrigin='anonymous'
         />
 
diff --git a/app/javascript/mastodon/features/ui/components/audio_modal.js b/app/javascript/mastodon/features/ui/components/audio_modal.js
index dc033434e..a80776b22 100644
--- a/app/javascript/mastodon/features/ui/components/audio_modal.js
+++ b/app/javascript/mastodon/features/ui/components/audio_modal.js
@@ -2,17 +2,27 @@ import React from 'react';
 import ImmutablePropTypes from 'react-immutable-proptypes';
 import PropTypes from 'prop-types';
 import Audio from 'mastodon/features/audio';
+import { connect } from 'react-redux';
 import ImmutablePureComponent from 'react-immutable-pure-component';
 import { FormattedMessage } from 'react-intl';
 import { previewState } from './video_modal';
 import classNames from 'classnames';
 import Icon from 'mastodon/components/icon';
 
-export default class AudioModal extends ImmutablePureComponent {
+const mapStateToProps = (state, { status }) => ({
+  account: state.getIn(['accounts', status.get('account')]),
+});
+
+export default @connect(mapStateToProps)
+class AudioModal extends ImmutablePureComponent {
 
   static propTypes = {
     media: ImmutablePropTypes.map.isRequired,
     status: ImmutablePropTypes.map,
+    options: PropTypes.shape({
+      autoPlay: PropTypes.bool,
+    }),
+    account: ImmutablePropTypes.map,
     onClose: PropTypes.func.isRequired,
   };
 
@@ -50,7 +60,8 @@ export default class AudioModal extends ImmutablePureComponent {
   }
 
   render () {
-    const { media, status } = this.props;
+    const { media, status, account } = this.props;
+    const options = this.props.options || {};
 
     return (
       <div className='modal-root__modal audio-modal'>
@@ -60,10 +71,11 @@ export default class AudioModal extends ImmutablePureComponent {
             alt={media.get('description')}
             duration={media.getIn(['meta', 'original', 'duration'], 0)}
             height={150}
-            poster={media.get('preview_url') || status.getIn(['account', 'avatar_static'])}
+            poster={media.get('preview_url') || account.get('avatar_static')}
             backgroundColor={media.getIn(['meta', 'colors', 'background'])}
             foregroundColor={media.getIn(['meta', 'colors', 'foreground'])}
             accentColor={media.getIn(['meta', 'colors', 'accent'])}
+            autoPlay={options.autoPlay}
           />
         </div>
 
diff --git a/app/javascript/mastodon/selectors/index.js b/app/javascript/mastodon/selectors/index.js
index 673268c5a..fd3b72f96 100644
--- a/app/javascript/mastodon/selectors/index.js
+++ b/app/javascript/mastodon/selectors/index.js
@@ -154,12 +154,13 @@ export const makeGetNotification = () => {
 export const getAccountGallery = createSelector([
   (state, id) => state.getIn(['timelines', `account:${id}:media`, 'items'], ImmutableList()),
   state       => state.get('statuses'),
-], (statusIds, statuses) => {
+  (state, id) => state.getIn(['accounts', id]),
+], (statusIds, statuses, account) => {
   let medias = ImmutableList();
 
   statusIds.forEach(statusId => {
     const status = statuses.get(statusId);
-    medias = medias.concat(status.get('media_attachments').map(media => media.set('status', status)));
+    medias = medias.concat(status.get('media_attachments').map(media => media.set('status', status).set('account', account)));
   });
 
   return medias;