======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '289'
                                          'artist'  'Blümchen'
                                     'text_people'  ''
                                         'release'  'Live in Berlin'
                                           'title'  'Boomerang'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['german', 'eurodance', 'dance', 'techno', 'happy hardcore']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '18'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-th-ent-happy hardcore'
                                             'bpm'  '91.062'
                                             'key'  '7B'
                                        'acoustid'  '5c9e8b6e-d64d-40ce-89ef-2d933ab02656'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Live in Berlin'
'TBPM' (BPM (beats per minute))                     '91.062'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-ent-happy hardcore'
'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Boomerang'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'Blümchen'
'TPE2' (Band/orchestra/accompaniment)               'Blümchen'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '6/18'
'TSO2'                                              'Blümchen'
'TSOP' (Performer sort order)                       'Blümchen'
'TXXX:ASIN'                                         'B000031XCD'
'TXXX:Acoustid Id'                                  '5c9e8b6e-d64d-40ce-89ef-2d933ab02656'
'TXXX:MusicBrainz Album Artist Id'                  'c31500d6-4ad1-4850-a004-7d9a2c2492d6'
'TXXX:MusicBrainz Album Id'                         'f23b553b-952a-4864-a2bb-f0548de287bc'
'TXXX:MusicBrainz Album Release Country'            'DE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'live'
'TXXX:MusicBrainz Artist Id'                        'c31500d6-4ad1-4850-a004-7d9a2c2492d6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['german', 'eurodance', 'dance', 'techno', 'happy hardcore']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.76 dB'
'TXXX:replaygain_track_peak'                        '0.445942'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'fd0d237e-e760-4530-af2f-710004ef0254')

========================== row from database ==========================
                                              'id'  1388185
                                            'path'  /data/Music/Bulk/00poprockelectronic/00techno-house-harder-beats/Blumchen/04. Blumchen - Live in Berlin (Limited Edition) (1999)/06. Boomerang.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  289
                                           'genre'  electronic-th-ent-happy hardcore
                                        'filesize'  11588930
                                           'mtime'  1620563593
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00techno house harder beats Blumchen 04. Blumchen (Limited Edition) (1999) 06. electronic th ent happy hardcore
                                      'tag_artist'  Blümchen
                                     'tag_release'  Live in Berlin
                                       'tag_title'  Boomerang
                                             'bpm'  91.062
                                    'search_title'  'boomerang':1
                                   'search_artist'  'blumchen':1,2
                                  'search_release'  'berlin':3 'in':2 'live':1
                                     'search_rest'  '00poprockelectronic':1 '00techno':2 '04':7,8 '06':15,16 '1999':13,14 'beats':5 'blumchen':6 'edition':11,12 'electronic':17 'ent':19 'happy':20 'hardcore':21 'harder':4 'house':3 'limited':9,10 'th':18
                                    'search_combo'  '00poprockelectronic':7 '00techno':8 '04':13,14 '06':21,22 '1999':19,20 'beats':11 'berlin':6C 'blumchen':2B,3B,12 'boomerang':1A 'edition':17,18 'electronic':23 'ent':25 'happy':26 'hardcore':27 'harder':10 'house':9 'in':5C 'limited':15,16 'live':4C 'th':24
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['german', 'eurodance', 'dance', 'techno', 'happy hardcore']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620563592.543841  (2021-05-09 14:33:12)
                             'size'  11588930