======================== unified (from filesystem) ========================
                                         'bitrate'  '163.43'
                                        'duration'  '171'
                                          'artist'  'Tommy Hill'
                                     'text_people'  ''
                                         'release'  'Office Naps Youtube Channel'
                                           'title'  'Walls of Stone '
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-JZFKS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'bluesrock', 'guitar blues', 'blues drummer']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
                                             'bpm'  '107.2'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Office Naps Youtube Channel'
'TBPM' (BPM (beats per minute))                     '107.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDRC' (Recording time)                             '1960'
'TIT2' (Title/songname/content description)         'Walls of Stone '
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Tommy Hill'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'bluesrock', 'guitar blues', 'blues drummer']
'TXXX:other'                                        '28kbit_AAC)'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                        '+0.95 dB'
'TXXX:replaygain_track_peak'                        '0.433157'

========================== row from database ==========================
                                              'id'  1120320
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Office Naps Youtube Channel (Ripped 05 09 16)/Tommy Hill_ _Walls of Stone_ (128kbit_AAC).mp3
                                         'working'  None
                                         'bitrate'  163
                                    'duration_sec'  171
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
                                        'filesize'  3502577
                                           'mtime'  1620539043
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm (Ripped 05 09 16) Hill_ _Walls Stone_ (128kbit_AAC) prerock jb jazz lounge or exotica or bossa
                                      'tag_artist'  Tommy Hill
                                     'tag_release'  Office Naps Youtube Channel
                                       'tag_title'  Walls of Stone 
                                             'bpm'  107.2
                                    'search_title'  'of':2 'stone':3 'walls':1
                                   'search_artist'  'hill':2 'tommy':1
                                  'search_release'  'channel':4 'naps':2 'office':1 'youtube':3
                                     'search_rest'  '128kbit':8,10 '16':3,4 'aac':9,11 'bossa':18 'exotica':17 'hill':5 'jazz':14 'jb':13 'lounge':15 'or':16 'prerock':12 'ripped':1,2 'stone':7 'walls':6
                                    'search_combo'  '128kbit':17,19 '16':12,13 'aac':18,20 'bossa':27 'channel':9C 'exotica':26 'hill':5B,14 'jazz':23 'jb':22 'lounge':24 'naps':7C 'of':2A 'office':6C 'or':25 'prerock':21 'ripped':10,11 'stone':3A,16 'tommy':4B 'walls':1A,15 'youtube':8C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['blues', 'bluesrock', 'guitar blues', 'blues drummer']
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620539043.2343025  (2021-05-09 07:44:03)
                             'size'  3502577