======================== unified (from filesystem) ========================
                                         'bitrate'  '190.276'
                                        'duration'  '361'
                                          'artist'  'harry thumann'
                                     'text_people'  ''
                                         'release'  'Space Disco - The Top 50'
                                           'title'  'underwater (12 in'
                                           'quals'  ("['Q-HAP-4', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', '80s', 'space disco', 'electronic', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1985'
                                        'comments'  ''
                                           'genre'  'electronic-we-disco or italo'
                                             'bpm'  '130.8'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Space Disco - The Top 50'
'TBPM' (BPM (beats per minute))                     '130.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-we-disco or italo'
'TDRC' (Recording time)                             '1985'
'TIT1' (Content group description)                  ' '
'TIT2' (Title/songname/content description)         'underwater (12 in'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'harry thumann'
'TXXX:Q-HAP'                                        '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dance', '80s', 'space disco', 'electronic', 'disco']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.90 dB'
'TXXX:replaygain_track_peak'                        '0.742576'
'TXXX:tracknum'                                     '15'

========================== row from database ==========================
                                              'id'  1361126
                                            'path'  /data/Music/Bulk/00poprockelectronic/v.a. - space disco_the top 50/15 harry thumann - underwater (12 in.mp3
                                         'working'  None
                                         'bitrate'  190
                                    'duration_sec'  361
                                           'genre'  electronic-we-disco or italo
                                        'filesize'  8596858
                                           'mtime'  1620573967
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic v.a. space disco_the top 15 electronic we disco or italo
                                      'tag_artist'  harry thumann
                                     'tag_release'  Space Disco - The Top 50
                                       'tag_title'  underwater (12 in
                                             'bpm'  130.8
                                    'search_title'  '12':2,3 'in':4 'underwater':1
                                   'search_artist'  'harry':1 'thumann':2
                                  'search_release'  '50':5 'disco':2 'space':1 'the':3 'top':4
                                     'search_rest'  '00poprockelectronic':1 'a':3 'disco':6,11 'electronic':9 'italo':13 'or':12 'space':5 'the':7 'top':8 'v':2 'va':4 'we':10
                                    'search_combo'  '00poprockelectronic':12 '12':2A,3A '50':11C 'a':14 'disco':8C,17,22 'electronic':20 'harry':5B 'in':4A 'italo':24 'or':23 'space':7C,16 'the':9C,18 'thumann':6B 'top':10C,19 'underwater':1A 'v':13 'va':15 'we':21
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-4', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['dance', '80s', 'space disco', 'electronic', 'disco']
                                        'tag_date'  1985
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620573966.824021  (2021-05-09 17:26:06)
                             'size'  8596858