======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '264'
                                          'artist'  'Astrud Gilberto'
                                     'text_people'  'Oscar Hammerstein II/Richard Rodgers'
                                         'release'  "Astrud Gilberto's Finest Hour"
                                           'title'  'It Might As Well Be Spring'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-3', 'Q-JZFKS-2', 'Q-HHRNBTT-1', "
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                                      'lastfmtags'  "['bossa nova', 'fip', 'latin', 'jazz', 'female vocalists', 'brazilian']"
                                     'discogstags'  "['jazz', 'bossanova', 'easy listening', 'vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '85.561'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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'TALB' (Album/Movie/Show title)                     "Astrud Gilberto's Finest Hour"
'TBPM' (BPM (beats per minute))                     '85.561'
'TCOM' (Composer)                                   'Oscar Hammerstein II/Richard Rodgers'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'It Might As Well Be Spring'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Astrud Gilberto'
'TPE2' (Band/orchestra/accompaniment)               'Astrud Gilberto'
'TPUB' (Publisher)                                  'Verve'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['jazz', 'bossanova', 'easy listening', 'vocal']
'TXXX:lastfmtags'                                   ['bossa nova', 'fip', 'latin', 'jazz', 'female vocalists', 'brazilian']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.01 dB'
'TXXX:replaygain_track_peak'                        '0.859840'

========================== row from database ==========================
                                              'id'  851149
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/ASTRUD en BEBEL GILBERTO/Astrud Gilberto - It Might As Well Be Spring.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  264
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  6357493
                                           'mtime'  1620528082
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country ASTRUD en BEBEL GILBERTO prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Astrud Gilberto
                                     'tag_release'  Astrud Gilberto's Finest Hour
                                       'tag_title'  It Might As Well Be Spring
                                             'bpm'  85.561
                                    'search_title'  'as':3 'be':5 'it':1 'might':2 'spring':6 'well':4
                                   'search_artist'  'astrud':1 'gilberto':2
                                  'search_release'  'astrud':1 'finest':5 'gilberto':2 'gilbertos':4 'hour':6 's':3
                                     'search_rest'  'astrud':5 'bebel':7 'bossa':13 'country':4 'en':6 'exotica':2 'gilberto':8 'jazz':1 'jb':10 'lounge':11 'oldies':3 'or':12 'prerock':9
                                    'search_combo'  'as':3A 'astrud':7B,9C,19 'be':5A 'bebel':21 'bossa':27 'country':18 'en':20 'exotica':16 'finest':13C 'gilberto':8B,10C,22 'gilbertos':12C 'hour':14C 'it':1A 'jazz':15 'jb':24 'lounge':25 'might':2A 'oldies':17 'or':26 'prerock':23 's':11C 'spring':6A 'well':4A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['bossa nova', 'fip', 'latin', 'jazz', 'female vocalists', 'brazilian']
                                        'tag_date'  2001
                                     'discogstags'  ['jazz', 'bossanova', 'easy listening', 'vocal']

============================== file details ==============================
                                           'mtime'  1620528082.0266483  (2021-05-09 04:41:22)
                             'size'  6357493