======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '245'
                                          'artist'  'Letters to Cleo'
                                     'text_people'  ''
                                         'release'  'Live at Fort Apache Studios 11'
                                           'title'  'Big Star'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['90s', 'alternative', 'female vocalists', 'pop', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio'
                                             'bpm'  '97.883'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Live at Fort Apache Studios 11'
'TBPM' (BPM (beats per minute))                     '97.883'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Big Star'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Letters to Cleo'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['90s', 'alternative', 'female vocalists', 'pop', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.53 dB'
'TXXX:replaygain_track_peak'                        '0.454343'

========================== row from database ==========================
                                              'id'  1358718
                                            'path'  /data/Music/Bulk/00poprockelectronic/Letters to Cleo/Aurora Gory Alice__Letters To Cleo - Big Star.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  245
                                           'genre'  electronic-generic or radio
                                        'filesize'  5903947
                                           'mtime'  1630248924
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Aurora Gory Alice__Letters To electronic generic radio
                                      'tag_artist'  Letters to Cleo
                                     'tag_release'  Live at Fort Apache Studios 11
                                       'tag_title'  Big Star
                                             'bpm'  97.883
                                    'search_title'  'big':1 'star':2
                                   'search_artist'  'cleo':3 'letters':1 'to':2
                                  'search_release'  'apache':4 'at':2 'fort':3 'live':1 'studios':5
                                     'search_rest'  '00poprockelectronic':1 'alice':4 'aurora':2 'electronic':7 'generic':8 'gory':3 'letters':5 'radio':9 'to':6
                                    'search_combo'  '00poprockelectronic':11 'alice':14 'apache':9C 'at':7C 'aurora':12 'big':1A 'cleo':5B 'electronic':17 'fort':8C 'generic':18 'gory':13 'letters':3B,15 'live':6C 'radio':19 'star':2A 'studios':10C 'to':4B,16
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['90s', 'alternative', 'female vocalists', 'pop', 'rock']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1630248923.5345178  (2021-08-29 16:55:23)
                             'size'  5903947