======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '353'
                                          'artist'  'FAITHLESS & JON CREAMER & STEPHANE K'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'INSOMNIA 2003'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '86.6'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '86.6'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '1996'
'TIT2' (Title/songname/content description)         'INSOMNIA 2003'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'FAITHLESS & JON CREAMER & STEPHANE K'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.75 dB'
'TXXX:replaygain_track_peak'                        '0.619836'

========================== row from database ==========================
                                              'id'  1317283
                                            'path'  /data/Music/Bulk/00poprockelectronic/Faithless/1996 - Insomnia (single)/FAITHLESS & JON CREAMER & STEPHANE K - INSOMNIA 2003.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  353
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  5662307
                                           'mtime'  1636911225
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Faithless 1996 Insomnia (single) electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  FAITHLESS & JON CREAMER & STEPHANE K
                                     'tag_release'  None
                                       'tag_title'  INSOMNIA 2003
                                             'bpm'  86.6
                                    'search_title'  '2003':2 'insomnia':1
                                   'search_artist'  'creamer':3 'faithless':1 'jon':2 'k':5 'stephane':4
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '1996':3 'acid':12 'downtempo':11 'electronic':7 'faithless':2 'hop':9 'insomnia':4 'jazz':13 'or':10 'single':5,6 'trip':8
                                    'search_combo'  '00poprockelectronic':8 '1996':10 '2003':2A 'acid':19 'creamer':5B 'downtempo':18 'electronic':14 'faithless':3B,9 'hop':16 'insomnia':1A,11 'jazz':20 'jon':4B 'k':7B 'or':17 'single':12,13 'stephane':6B 'trip':15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636911225.1830149  (2021-11-14 18:33:45)
                             'size'  5662307