======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '223'
                                          'artist'  '1900'
                                     'text_people'  ''
                                         'release'  '1900'
                                           'title'  '"..."'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['swedish', 'instrumental', 'lo fi', 'soundscape', 'psychedelic']"
                                     'discogstags'  "['rock', 'alternative rock', 'post rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '9'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic;loc-eur-northern-sweden'
                                             'bpm'  '154'
                                             'key'  '8B'
                                        'acoustid'  'bfbb1ea3-a78b-4fb3-af74-02daade36b0e'
rest: ''

======================== rawer (from filesystem) ========================

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     '1900'
'TBPM' (BPM (beats per minute))                     '154'
'TCON' (Content type, a.k.a. Genre)                 ['electronic', 'loc-eur-northern-sweden']
'TDOR' (Original release time)                      '2008'
'TDRC' (Recording time)                             '2008-11-26'
'TIT2' (Title/songname/content description)         '"..."'
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '1900'
'TPE2' (Band/orchestra/accompaniment)               '1900'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'St4t'
'TRCK' (Track number/Position in set)               '4/9'
'TSO2'                                              '1900'
'TSOP' (Performer sort order)                       '1900'
'TXXX:Acoustid Id'                                  'bfbb1ea3-a78b-4fb3-af74-02daade36b0e'
'TXXX:Artists'                                      '1900'
'TXXX:CATALOGNUMBER'                                'St4t002'
'TXXX:MusicBrainz Album Artist Id'                  'fdadaef9-88e5-49b4-acd2-8cffb47181e8'
'TXXX:MusicBrainz Album Id'                         '12e5ba4f-118a-43e2-8541-5f4d45160937'
'TXXX:MusicBrainz Album Release Country'            'SE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'fdadaef9-88e5-49b4-acd2-8cffb47181e8'
'TXXX:MusicBrainz Release Group Id'                 'fa32bf35-ec9b-3856-ad37-97c6ca3ab753'
'TXXX:MusicBrainz Release Track Id'                 '38f27149-1465-3838-901b-ebb079aa8b11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'alternative rock', 'post rock']
'TXXX:lastfmtags'                                   ['swedish', 'instrumental', 'lo fi', 'soundscape', 'psychedelic']
'TXXX:originalyear'                                 '2008'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.44 dB'
'TXXX:replaygain_track_peak'                        '0.414208'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'8d2b2f7c-7156-43b3-b70a-2bf9029dae37')

========================== row from database ==========================
                                              'id'  1491078
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00scandinavia/1900 [Tape music] [Ambient] [Chamber folk] {Sweden}/2008 - 1900/04 -.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  223
                                           'genre'  electronic;loc-eur-northern-sweden
                                        'filesize'  5420022
                                           'mtime'  1636912941
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00scandinavia [Tape music] [Ambient] [Chamber folk] {Sweden} 2008 04 electronic;loc eur northern sweden
                                      'tag_artist'  1900
                                     'tag_release'  1900
                                       'tag_title'  "..."
                                             'bpm'  154.0
                                    'search_title'  
                                   'search_artist'  '1900':1
                                  'search_release'  '1900':1
                                     'search_rest'  '00mid':1 '00scandinavia':4 '2008':16 'ambient':9,10 'chamber':11,12 'electronic':17,19 'eur':21 'europe':3 'folk':13,14 'loc':18,20 'music':7,8 'north':2 'northern':22 'sweden':15,23 'tape':5,6
                                    'search_combo'  '00mid':3 '00scandinavia':6 '1900':1B,2C '2008':18 'ambient':11,12 'chamber':13,14 'electronic':19,21 'eur':23 'europe':5 'folk':15,16 'loc':20,22 'music':9,10 'north':4 'northern':24 'sweden':17,25 'tape':7,8
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['swedish', 'instrumental', 'lo fi', 'soundscape', 'psychedelic']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'alternative rock', 'post rock']

============================== file details ==============================
                                           'mtime'  1636912941.225197  (2021-11-14 19:02:21)
                             'size'  5420022