======================== unified (from filesystem) ========================
                                         'bitrate'  '144.295'
                                        'duration'  '482'
                                          'artist'  'The Legendary Pink Dots'
                                     'text_people'  ''
                                         'release'  'Farewell, Milky Way'
                                           'title'  'Needles'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['industrial', 'electronic', 'psychedelic', 'experimental', 'avantgarde']"
                                     'discogstags'  "['electronic', 'rock', 'industrial', 'psychedelic rock', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  '09'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '112.4'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Farewell, Milky Way'
'TBPM' (BPM (beats per minute))                     '112.4'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Needles'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Legendary Pink Dots'
'TRCK' (Track number/Position in set)               '08/09'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock', 'industrial', 'psychedelic rock', 'experimental']
'TXXX:lastfmtags'                                   ['industrial', 'electronic', 'psychedelic', 'experimental', 'avantgarde']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.98 dB'
'TXXX:replaygain_track_peak'                        '0.641693'

========================== row from database ==========================
                                              'id'  1377090
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Legendary Pink Dots - Legendary Pink Dots, The - Farewell, Milky Way [2000]/08 - Needles.mp3
                                         'working'  None
                                         'bitrate'  144
                                    'duration_sec'  482
                                           'genre'  electronic-experimental
                                        'filesize'  8710150
                                           'mtime'  1622658671
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Dots, [2000] 08 electronic experimental
                                      'tag_artist'  The Legendary Pink Dots
                                     'tag_release'  Farewell, Milky Way
                                       'tag_title'  Needles
                                             'bpm'  112.4
                                    'search_title'  'needles':1
                                   'search_artist'  'dots':4 'legendary':2 'pink':3 'the':1
                                  'search_release'  'farewell':1,2 'milky':3 'way':4
                                     'search_rest'  '2000':3,4 'dots':1,2 'electronic':5 'experimental':6
                                    'search_combo'  '2000':12,13 'dots':5B,10,11 'electronic':14 'experimental':15 'farewell':6C,7C 'legendary':3B 'milky':8C 'needles':1A 'pink':4B 'the':2B 'way':9C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['industrial', 'electronic', 'psychedelic', 'experimental', 'avantgarde']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic', 'rock', 'industrial', 'psychedelic rock', 'experimental']

============================== file details ==============================
                                           'mtime'  1622658671.3126543  (2021-06-02 20:31:11)
                             'size'  8710150