======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '178'
                                          'artist'  'Ella Fitzgerald'
                                     'text_people'  ''
                                         'release'  'Pure Ella'
                                           'title'  'The Boy from Ipanema'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']"
                                     'discogstags'  "['jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '108.704'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Pure Ella'
'TBPM' (BPM (beats per minute))                     '108.704'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'The Boy from Ipanema'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ella Fitzgerald'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'jazz'
'TXXX:lastfmtags'                                   ['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.514447'

========================== row from database ==========================
                                              'id'  673022
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/Ella Fitzgerald/MBZ;#Ella Fitzgerald;#Pure Ella;#11;#The Boy from Ipanema.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  178
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  2861845
                                           'mtime'  1620528658
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country MBZ;#Ella Fitzgerald;#Pure Ella;#11;#The prerock jb jazz unsorted
                                      'tag_artist'  Ella Fitzgerald
                                     'tag_release'  Pure Ella
                                       'tag_title'  The Boy from Ipanema
                                             'bpm'  108.704
                                    'search_title'  'boy':2 'from':3 'ipanema':4 'the':1
                                   'search_artist'  'ella':1 'fitzgerald':2
                                  'search_release'  'ella':2 'pure':1
                                     'search_rest'  '11':14,17 'country':4 'ella':6,8,13,16 'exotica':2 'fitzgerald':9,11 'jazz':1 'jb':20 'mbz':5,7 'oldies':3 'prerock':19 'pure':10,12 'the':15,18 'unsorted':21
                                    'search_combo'  '11':22,25 'boy':2A 'country':12 'ella':5B,8C,14,16,21,24 'exotica':10 'fitzgerald':6B,17,19 'from':3A 'ipanema':4A 'jazz':9 'jb':28 'mbz':13,15 'oldies':11 'prerock':27 'pure':7C,18,20 'the':1A,23,26 'unsorted':29
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'jazz', 'female vocalists', 'jazz vocal', 'swing']
                                        'tag_date'  1997
                                     'discogstags'  ['jazz']

============================== file details ==============================
                                           'mtime'  1620528657.7334914  (2021-05-09 04:50:57)
                             'size'  2861845